Location Guide
GM reference. Every major location in the campaign, described in enough detail to run without additional prep. Read the relevant section before each session, not during.
Fort Vindolanda
Fort Vindolanda is a standard auxiliary cohort fort (castra) on the Germanic frontier, garrisoned by roughly 800 soldiers at full strength. At the time of the campaign it runs below strength: perhaps 550 effectives, the rest on detachment, sick, or recently rotated out and not yet replaced.
The fort follows the standard castra plan (see castra_layout.svg in player_guide.qmd). What the plan doesn’t show is what these buildings feel and smell like when occupied. Use that map as the key: the sections below correspond to the labeled buildings so you can point to the diagram while you describe the scene.
The Principia (Headquarters)
What it is: The administrative and ceremonial heart of the fort. A large rectangular building at the fort’s centre, facing the via praetoria. Inside: a colonnaded courtyard, the aedes (shrine room holding the legion’s standards and the Emperor’s image), the offices where the librarii write orders and ledgers, and the Legate’s private meeting room.
Sensory details: It smells of lamp oil, papyrus, and beeswax from the wax tablets. The floor is stone, swept daily. The aedes is kept dark except for one permanent oil lamp. Every soldier who passes the standards must give them a small nod — the instinct is trained in and requires no conscious thought.
What happens here: Morning briefings, disciplinary hearings, the distribution of orders, private meetings between officers. Most soldiers enter the principia only under orders or under investigation.
For the campaign: The Legate summons the party here in Scene 1. The encoded letter is somewhere in the Tribune’s assigned office in Session 2. The librarius Decanus Festus works in the outer room and has been copying orders for three months — he knows more than he admits and resents anyone who assumes otherwise.
The Praetorium (Legate’s Residence)
What it is: Adjacent to the principia, the commanding officer’s personal quarters. Larger than it should be for a frontier posting: the Legate has made it comfortable at considerable personal expense. Mosaic floor in the entry hall. A private garden (overgrown in winter, maintained in summer). A dining room that seats twelve.
Sensory details: Warmer than the rest of the fort. The Legate keeps two braziers lit at all times. It smells of cooking, good wine, and faintly of the cedar oil he uses to preserve his personal documents.
What happens here: Private negotiations with the Tribune, Cassia’s late-night meeting with the party if they go looking for her, the Legate’s late-night correspondence with his patron in Rome.
Behind the closed door: The Legate keeps a locked dispatch chest under his bed. It contains: three letters from his Roman patron (never destroy letters from men like this), a list of the soldiers he trusts personally with the annotation “loyal” or “loyal enough,” and a copy of the excavation report that was never officially filed.
The Valetudinarium (Hospital)
What it is: A long rectangular building on the eastern side of the fort, organized around an internal courtyard. Twelve wards open onto the courtyard from both sides, each holding four to six beds. The medicus has a private surgery at the far end.
Sensory details: Clean, by design – the Romans understand infection empirically if not theoretically. It smells of honey (used in wound dressings), vinegar, and something organic that never quite goes away. The walls are plastered white. The lighting is better here than anywhere else in the fort.
What happens here: The mad worker is brought here after Session 1. The medicus Gaius Petronius has examined him and has notes that the party can find with a DC 12 Investigation: “Subject unresponsive to pain stimulus during episode. No fever. Eyes track toward something unseen on the northeast wall. Unknown cause.”
The medicus: Gaius Petronius is 47, Alexandrian-born, and deeply interested in whatever just happened to this patient. He will ask the party uncomfortable questions in a gentle voice and take meticulous notes on the answers. He is not dangerous. He is an ally who asks for information in exchange for information.
The Barracks
What they are: Long buildings divided into contubernia – pairs of rooms sharing a doorway, housing eight soldiers each. One room for equipment and storage, one for sleeping. The century’s centurion has a slightly larger end room with a separate entrance.
Sensory details: At night: snoring, the smell of eight men and their gear, leather, metal, occasionally smoke from someone with a small brazier. In the morning: controlled chaos as 80 men all need to be dressed, armed, and in formation within fifteen minutes. The centurion’s morning voice carries all the way to the gate.
What happens here: Rumors. The barracks is where everything the officers don’t know gets processed, discussed, and inflated. After Session 1, the rumors are: the dogs were poisoned by someone in the fort; the excavation woke a Germanic god; the Legate knows something and is hiding it; and at least two soldiers have had the same dream.
The Bathhouse (Balneum)
What it is: Outside the main fort walls, adjacent to the east gate. Three rooms: cold (frigidarium), warm (tepidarium), hot (caldarium). Heated from below by a hypocaust furnace. Small by Roman standards but functional.
Sensory details: Steam. The slap of wet feet on stone. Men talking in low voices about nothing – the bathhouse is the one place in the fort where rank relaxes slightly. A soldier scraping oil off his skin with a strigil looks the same whether he’s a legionary or a centurion.
What happens here: Varro often takes the late-afternoon bath slot. This is the best time to catch him in a genuinely reflective mood – the bathhouse strips the tactical caution out of people. The Augur Cassia uses the women’s hour (the fort’s bathhouse schedules a two-hour window for the small number of women in the civilian settlement) but occasionally extends past her allotted time when the visions are bad.
The Excavation Site
What it is: A shaft in the northeast corner of the fort, behind the granary, originally dug as a well extension. The work crew broke through into void space at 40 feet – the upper edge of the Germanic temple structure below. The shaft is now 6 feet wide and shored with rough timber. The rope ladder is barely adequate.
Sensory details: Looking down: darkness, cold air rising, the smell of disturbed earth and old metal. The darkness is absolute after 15 feet. Anyone who has spent time underground notes that this darkness feels different from a mine or a cellar: quieter in a way that has nothing to do with sound.
Guard status: Two legionaries stationed at the shaft at all times after the first worker went mad. They are scared and working very hard not to show it. They will be relieved to hand responsibility to the party.
The Ruins Beneath
The 5-Room Dungeon. See Chapter 1 for full encounter details. This section provides the physical reality of each space for running purposes.
Room 0 – The Shaft (Descent): 40 feet deep, timber-shored. The rope ladder has seven rungs that are genuinely solid and three that are not. DC 10 Dexterity save when descending; failure drops a character 5 feet (1d6 bludgeoning) and sends a dull reverberation through the chamber below. The sound changes subtly as the party descends from fort-air to ancient-air.
Read aloud: The rope ladder sways as soon as the second pair of boots touches it. Cold air pours up out of the dark like water from a cracked cistern. Forty feet down you can just make out the pale suggestion of carved stone and the curve of a doorway that does not look Roman at all.
Room 1 – Hall of Shields (Entry/Atmosphere): 30 by 15 feet. Earth floor. 12-foot ceiling. Shelving along both walls at 6-foot intervals, holding shields in disciplined rows. They are organized by tribe, not by date, and the arrangement feels fresh, as if someone tended it yesterday.
Read aloud: Dozens of painted shields stare back at you from either wall, their bosses catching the torchlight in brief flashes. The air smells of old leather and cold iron. Nothing moves, yet the sensation of being inspected is immediate and physical.
Running note: Safe room. Shields are immovable. Attempting to pry one loose drops the temperature and produces a horn-blast only the PCs hear. When they return later, every shield is back in place regardless of what they did.
Room 2 – Chamber of Chains (Puzzle/Discovery): 20 by 20 feet. 8-foot ceiling. Iron chains suspended from iron rings set directly into stone. The metal is far colder than it should be.
Read aloud: Chains hang from the ceiling like a frozen curtain, each link rimed with moisture that never drips. The walls are cut stone that predates the Empire. Somewhere beyond the curtain you can hear stone grinding slowly against stone, as if the room were breathing.
Puzzle: Two specific chains, pulled simultaneously, open the vault door. DC 15 Investigation or DC 15 Intelligence (Arcana/Religion) after examining the runes etched into the links. Forcing the door requires DC 18 Strength check with loud consequences (wandering undead from Chapter 1 arrive).
Running note: The manacles fit creatures 8-10 feet tall. Let that implication sit.
Room 3 – Gallery of Echoes (Setback/Threat): A narrow, curved hallway connecting the Chamber of Chains to the vault. Width 5 feet, length 25 feet. The walls are polished obsidian-like stone that reflects torchlight imperfectly.
Read aloud: As you press forward the hallway narrows until shield and wall scrape together. Every sound you make rebounds immediately, doubled. Somewhere ahead a whisper answers your own breathing a half-second late.
Mechanics: While a character moves here, whispers describe their worst memory. Wisdom save DC 13 to avoid disadvantage on Perception for 1 hour. On a failed save by 5 or more, the whispers rip a secret loose: the GM passes a note revealing what memory the hall just took. This is the cost of crossing too quickly. A Detect Magic reveals an old Abjuration layer designed to unsettle invaders; dispelling the effect for one hour requires DC 15 Intelligence (Arcana) or a dispel magic.
Room 4 – The Vault (Climax): Circular, 20-foot diameter, 15-foot domed ceiling. The altar stands at the center; the spear rests atop it; two Animated Armor guardians flank the altar. See Chapter 1 for full encounter guidance.
Read aloud: The vaulted chamber opens without warning. The air is perfectly still. A single leaf hangs motionless in the middle of the room, suspended above a polished stone altar. On the altar rests a spear that buzzes at the edge of hearing. The space within five feet of the weapon is silent in a way that makes your skin prickle.
Running note: Let the party experience the silence before combat. The dead zone swallows sound. Spellcasting inside the five-foot zone requires a DC 12 concentration check from the caster even if they are not maintaining a spell; the air itself resists voice.
Room 5 – The Archive (Reward/Aftermath): Only discoverable with DC 17 Investigation in the vault, or by inspecting the altar’s base. A narrow gap reveals a cavity 6 feet wide and 4 feet deep sealed with packed earth. Inside:
- A clay cylinder, sealed with wax, containing a rolled strip of hammered bronze with Germanic runic text. This is a primary-source account of the spear’s origin: the name of the god’s son it killed, the name of the tribe that sealed it, and a curse on anyone who disturbs it. The party can have this translated by Thusnelda in Session 3 – the runes are Early Proto-Germanic, which only she can read.
- Three amber discs, each carved with a single rune. These are TIWAZ, HAGALAZ, and OTHALAN: war, disruption, and ancestral land. Magical items worth 50 gp each to a scholar or collector. Each functions as a spell component for Divination spells cast involving the Germanic tradition.
- A corroded iron key that fits nothing in the fort. It fits a lock in Thusnelda’s grove.
Running note: Treat the archive as the fifth room in the 5-Room structure: the hero’s reward. It can also serve as leverage if the party wants to convince Vercingetorix they actually understand the spear’s origin.
Gates and Walls (A on map)
What they are: Four stone-and-earth ramparts with timber parapets, each anchored by a gatehouse. The porta praetoria faces the main road; the porta decumana faces the forest. Corner towers carry signal braziers.
Sensory details: Wet timber, oiled leather from the gate mechanisms, the constant scrape of boots on the parapet walk. At night the walls smell of pitch and cold iron.
What happens here: Watch rotations change every four hours. The first barking dog was stationed here before it died; the surviving handlers refuse to remove the collar from its peg. The Chapter 1 Opening runs along the via praetoria between these gates, so be ready to describe the stone underfoot and the echo of alarms.
Granaries (Horrea, B on map)
What they are: Raised stone warehouses along the northern wall. Thick walls, ventilated floors, heavy bronze locks.
Sensory details: Dry grain and dust. In winter the granaries are warmer than the courtyard. Rats are present but controlled; the cats belonging to the vicus sleep on the rafters.
Campaign use: The excavation shaft is hidden behind the eastern horreum. The quartermaster keeps the reserve pay chest here (double-locked). During Session 2, Brutus’ sleeper agent leaves a coded message carved into the underside of a grain bin here (add DC 14 Investigation if the party searches for clues about Sextus’ death).
Workshops and Armoury (Fabrica, C on map)
What it is: The industrial block: forge, armour repair, leatherworking, carpentry. Smoke vents through a clay chimney. Constant hammering.
Sensory details: Iron scale on the floor, blackened rafters, the metallic tang of worked bronze. The forge runs almost constantly in campaign weeks 1-3 because the Legate ordered extra pilum heads in anticipation of trouble.
Campaign use: Corrupted spear fragments (if the party fractures it) can be temporarily stored here while awaiting secure transport. The faber Decimus has notes about material fatigue in the excavation support timbers (DC 12 Investigation), foreshadowing later collapses if ignored.
Drill Yard and Parade Ground (D on map)
What it is: Open packed-earth rectangle south of the principia. Marked with whitewashed stones for cohort formations.
Sensory details: Dust, sweat, the metallic snap of pilum launches, the steady beat of the training drum. Even off-duty soldiers cut across the parade ground at angles dictated by drill habits.
Campaign use: Scene 0 of Session 1 can open here: read aloud the cadence of marching boots and the Legate’s command voice rolling across stone. Any time pressure montage should include the parade ground filling with troops while the party is called elsewhere.
Stables and Animal Pens (E on map)
What they are: Timber structures along the west wall holding the fort’s limited cavalry mounts, draft animals, and messenger pigeons.
Sensory details: Hay, manure, the sound of hooves on plank flooring, the rattle of harness. Warm compared to the yard in winter.
Campaign use: Cassia uses the loft to eavesdrop on Praetorian conversations in Session 2. The messenger pigeons have been deliberately unsettled since the excavation: DC 13 Animal Handling to calm them long enough to send an urgent message.
The Vicus (Civilian Settlement)
The vicus is the civilian settlement pressed against Vindolanda’s east gate: approximately 200 people, none of them soldiers, all of them essential. Traders, families, discharged veterans, craftsmen, the fort’s informal mail relay, and at least two individuals who know more about this frontier than any officer inside the walls. The vicus is not chaos beside order; it is the other half of the fort’s life, the part that does not wear armor.
Approach from the east gate: Leaving through the east gate, a soldier passes the bathhouse first (the steam smell hits before the building comes into view), then the open drain channel that marks the vicus boundary, then the first permanent structures: a leatherworker’s workshop on the left, a farrier’s lean-to on the right, the smell of hot iron and hoof. The road widens slightly here, unpaved, worn into permanent ruts by cart traffic. Sixty feet further, the taberna faces the road directly. Its sign is a painted wine amphorae that has weathered past any identifiable color. The sign does not need to be legible; everyone knows where it is.
Sensory details: Smoke from a dozen different hearths. Cooked onions, leather, manure from the farrier’s yard, bread from the taberna kitchen. Children underfoot until dusk. Dogs that are nobody’s dog but everyone’s problem. The sound of a hammer from the workshop row, the sound of arguing over something trivial, the sound of a woman singing in a language that is not Latin and not Germanic but something older from further south. After a day inside the fort’s stone walls, the vicus smells like humanity rather than military efficiency. Soldiers describe it as a relief. Officers describe it as a liability. Both are right.
How the vicus differs from the fort: Inside the walls, every relationship is vertical: rank determines everything. In the vicus, rank matters less than whether you pay your debts, treat the traders fairly, and do not cause trouble the civilians have to absorb. A centurion who beats his tab has no more standing here than a new recruit who pays on time. The taberna operator Brennus makes no distinction. The mail relay widow Lucilla makes no distinction. The Gallic craftsman Aldric has outlasted five garrison rotations and makes no distinctions at all.
Physical Layout of the Vicus
The vicus runs along the east road and branches into two short side streets. Total footprint: roughly 200 by 150 feet of buildings, yards, and open market space. Approximately 40 structures, ranging from the taberna (the largest, two stories) to single-room workshops.
The taberna (tavern and inn): Faces the main road, impossible to miss. Ground floor: a long common room with four tables, a bar counter of rough timber, a clay hearth for cooking, and a side room Brennus uses as his office (he calls it his office; it contains a stool, a box of receipts, and a locked chest). Upper floor: four rooms for rent, currently occupied by a retired surgeon, two traveling merchants, and one person whose business Brennus has not asked about. The kitchen runs from before dawn until the fire goes out.
The workshop row: Eight structures along the south side of the main street. The leatherworker (Aldric the Gaul occupies the largest) is closest to the gate. Next: a farrier’s yard with a small covered forge. Then a ropemaker, a carpenter who also builds coffins (“everyone needs one eventually”), a woman who sews sail-cloth-weight repairs for tents and wagon covers, and at the far end, a stall selling cheap bronze pins, clasps, and rings that look exactly like jewelry from anywhere in the Empire but originated three days north in a Germanic village nobody has officially visited.
The vicus shrine: A small square building at the junction of the main street and the south side-lane. Dedicated to Fortuna by the plaque above the door, dedicated to something older and unnamed by the altar stone inside, which predates the plaque by at least 200 years. The current priest is a Gallic freedman in his sixties named Sacrovir, who performs Roman rites correctly and leaves a small offering to the older spirit every third night. He does not discuss this second practice. When soldiers ask what the older altar is for, he says: “The place.”
The bathhouse annex: Adjacent to the fort’s bathhouse, sharing the hypocaust furnace. Two additional rooms for civilian use during the hours when the military schedule does not fill the main building. The annex has its own entrance, used by vicus women, civilian merchants, and occasionally officers who do not want to be seen at the same time as their soldiers.
The trader stalls: Six permanent stalls along the main road, occupied by the same vendors year-round. Four rotating seasonal stalls appear between April and October: a pottery seller from the south, a cloth merchant, an amber dealer from the coast, and a spice trader whose route the fort’s intelligence officer has been trying to document without success for two years.
The mail relay house: Lucilla’s house on the north side-lane, third building from the east gate. Distinguished from other houses by two things: a small iron hook by the door where soldiers leave messages (wrapped in cloth, no envelopes, nobody asks what is inside), and Lucilla herself, who is usually visible through the front window, writing. Her handwriting is better than the fort’s official scribes. Her contact network extends to Carnuntum, Eboracum, and three civilian settlements between here and the Danube. She charges two asses per letter delivered and has not lost one in fifteen years.
Atto: Not a building. Atto is fourteen, half-Roman (his father was a legionary who rotated out five years ago and sent nothing since), half-Germanic (his mother is Lucilla’s neighbor, who does not speak Latin and does not try). He speaks all three languages: Latin, Germanic, and a smattering of Gallic from Aldric. He has never been inside the fort in his life. He has spent years pressing his ear against every inch of its exterior wall. He knows which drainage ditch runs under the southwest corner, which postern door hangs fractionally off its hinge and can be lifted free from outside with a specific motion, which section of the north wall has loose-mortared stone that shifts when the temperature drops, and exactly which arc each watchtower covers and where those arcs do not overlap. None of this knowledge was acquired through spying. He is fourteen. He explored. He tells adults nothing about this unless they treat him as someone worth talking to.
Vicus Under Siege (Session 4)
When the Germanic warband tightens around Vindolanda in Session 4, the vicus is caught between the fort’s walls and the siege line. The east gate can no longer be opened freely. The vicus is effectively cut off.
What civilians do by default (if the party does not intervene): They shelter in the taberna and the shrine, drawing shutters, rationing Brennus’s food stores, and waiting. This is passive but not stupid: the vicus has survived three prior garrison crises by being too small and too civilian to be worth attacking. The default outcome is that the vicus survives the siege intact but contributes nothing to the fort’s defense and consumes resources if the party brings them inside the walls.
Three options the party can direct:
Option 1: Shelter inside the fort walls. The party opens the east gate under cover and brings the vicus civilians inside before the siege line closes completely. This requires DC 13 Athletics (moving quickly while managing panicked civilians) and costs one gate-opening opportunity that may be needed later. If successful: the vicus’s civilian skills become available inside the walls (Lucilla’s relay, Aldric’s repair work, Brennus’s cooking keeps morale stable); Brennus contributes his private food stores to the fort’s rations; civilian morale inside the fort starts at neutral rather than frightened. Risk: 200 additional mouths on the already-strained ration supply; if the fort falls, all 200 are inside when it does.
Option 2: Civilian flight north road. The party organizes a civilian column to exit through the north postern gate (less watched by the warband) and move north along the road to the next way-station. This requires DC 14 Persuasion to convince Brennus (he does not want to abandon his taberna), DC 12 Stealth for the column to move without drawing warband attention, and DC 13 Survival for the group to navigate the north road correctly in poor weather. If successful: the vicus is safe; the party loses access to all four vicus characters for the remainder of Session 4; Brennus’s food stores are abandoned. Risk: if the column is intercepted, the party cannot protect them and run the fort simultaneously.
Option 3: Civilian delegation to the Germanic warband. The vicus civilians send three people, led by Lucilla (her idea; she speaks basic Germanic from fifteen years on the frontier), to negotiate non-combatant status with the warband’s outer commanders. This requires DC 15 Persuasion for Lucilla to secure the chieftain’s recognition that the vicus is civilian. If she succeeds: the siege line officially excludes the vicus; the east gate can be used once per session by a party member in civilian clothing without military challenge; the vicus becomes a neutral channel. DC 18 to also negotiate active intelligence from warband movement patterns. Risk: Brutus’s sleeper agents inside the fort hear about the negotiation and move to sabotage it (DC 14 Insight to spot the agent before he acts).
Option 4: Atto’s route. If the party has reached DC 16 with Atto before the siege begins, he will guide one party member out through the drainage channel during Session 4 – once, to accomplish a specific goal, not as a general passage. This is the only way to exit the fort during the siege without going through a gate. Uses: retrieve something left in the vicus; reach Lucilla when the east gate is closed; get someone out of the fort unseen. Atto does not go twice. If a second use is needed, the party must negotiate separately and offer something new.
DM default if the party does not engage this choice by Scene 1: The civilians shelter in the taberna and shrine (Option 1’s passive version: they stay in place, do not enter the fort, do not try to flee, eat Brennus’s food, and pray). The party loses access to Lucilla’s relay during the siege but Aldric can still be reached through the east gate (one trip per scene, DC 12 Stealth to make it look like a supply run).
Running note for the siege vicus: Every time the party visits the vicus during the siege, describe the same three details: shutters closed, shrine candles visible through a crack in the door, and children’s voices audible but not visible. These three details communicate “alive but scared” without narration overhead. If any of the three disappears, the DM is signaling something has changed.
The Vicus as Adventure Space
Three things the party can do in the vicus that are impossible inside the fort:
1. Access the informal black market. Brennus’s locked chest (false bottom) connects to a supply chain of goods that bypass the quartermaster’s manifest. Currently in stock: two doses of henbane sedative (not available from Valeria without medical context; here, 20 denarii each, no questions); one set of Germanic civilian clothing in a Roman soldier’s size (useful for crossing the east gate unidentified during the siege); three bottles of wine that the Legate ordered specifically and that were never officially delivered to the praetorium (blackmail potential if the party can identify the requisition record; Aldric has it in his receipts box as collateral for a debt). Accessing the black market requires reaching Brennus at Trusted tier or paying 50 denarii as a one-time “access fee” that he refunds if the relationship develops. Risk: one item in the false-bottom chest is flagged in a manifest Brutus’s sleeper agent is looking for; finding it puts the party in the middle of a supply-chain dispute between the sleeper agent and Brennus’s Germanic contact.
2. Send unofficial messages that bypass the military mail system. Lucilla’s relay operates entirely outside the official courier network. Messages sent through her: do not appear in the fort’s dispatch log; reach Carnuntum in 36 hours rather than the military courier’s 72-hour minimum; can be addressed to individuals the military courier would not carry mail for (discharged soldiers, civilian contacts, names outside the official registry). Cost: 2 asses per letter standard; 1 favor per letter for the secure route. The practical uses: send word ahead to Carnuntum before the party leaves the fort in Session 3; contact Brutus’s household directly (the address is available at DC 18 in the relay house); send a letter under false identity to draw out a contact who will not respond to official requests. Lucilla’s one constraint: she will not carry a message she believes will get the recipient killed. She is correct about when a message carries that risk about 80 percent of the time.
3. Get information no officer would give them. The vicus sees everything the fort’s chain of command does not: which officers visit which traders after dark, what the wagons carry that does not match the manifest, what the off-duty soldiers say when they think the centurion is not listening, and which Germanic faces have been appearing near the east gate more frequently than trade would explain. Specific pieces of information currently in the vicus information network (see camp_economy.qmd for the full network description): who is currently in debt to whom among the lower officers; that the west workshop fire in Session 1 was started from inside, not outside; that Tribune Lucius met with someone in the taberna’s upper room the night before Sextus died; and that the person Lucilla’s relay received a message for two weeks ago, in a cipher she has seen once before, matches the name in the dispatch chest in the Legate’s quarters.
4. Access the fort’s exterior without going through the gate. Atto’s drainage channel route (DC 16 with Trusted relationship) is the only way in or out of the fort that bypasses the official gate log. Uses: exit the fort unseen during the siege when the east gate is closed; return from the forest without the Legate knowing the party left; bring a specific civilian inside the walls without going through the formal entry procedure. The southwest drainage channel is physically functional for any character who can pass a DC 12 Athletics check (crawling prone, approximately 30 feet). Atto guides, once, but does not go twice without an additional request and an additional reason worth his time.
Perimeter Walk and Towers
What it is: The walkway atop the walls, connecting corner towers and gatehouse roofs. Torches every 40 feet. The towers carry spare javelins, pitch pots, and a bronze warning bell each.
Sensory details: Wind. Always wind. At dawn the parapets are rimed with frost. At night the only sounds are boots and the muted river beyond the walls.
Campaign use: Perfect vantage for night scenes: the mad worker’s dash to the gate, the Legate looking over the forest during Session 1 consequence scenes, the Tribune’s Praetorians sneaking messages via signal flashes in Session 2.
Camp Level Location Unlocks
As Camp Level rises (see camp_economy.qmd), the physical state of key fort locations changes. This table gives the DM a quick reference for what each location looks, feels, and functions like at each level. Use it when describing a location the party revisits after an upgrade, or when adjudicating what resources are available at a given point in the campaign.
| Location | Level 1 | Level 2 | Level 3 |
|---|---|---|---|
| North Gate | Patched; functional; no ballista crew; standard gate AC (17) | Reinforced with new timber; one ballista operational; +1d10 piercing damage in any siege round the party controls the wall | Two ballistae operational; covered approach eliminated; attackers take opportunity attacks from the wall before reaching the gate |
| Valeria’s Corner | Field kit in a barracks corner; standard Medicine DC; standard hit dice recovery | Surgery properly outfitted; +2 to all Medicine checks made here; max hit dice result on short rest inside | Field hospital; Valeria can stabilize any downed character as a reaction once per session; no action cost to the party |
| Shrine | Informal; Paterculus tends it alongside other duties; standard Religion DC | Formally tended by rotational lay-priest; Religion checks inside the fort reduced by 2 DC | Dedicated; Mars ritual DCs reduced by 3; Cassia’s augury DC drops by 2; the altar has been active every morning for three sessions |
| Quartus’ Office | Standard ledger items only; requisitions require officer authorization | Heavy equipment access (siege weapons, plate components, bulk rations) with standard requisition | Full military supply chain including pilum stockpile and arcuballista bolts; party no longer requires officer authorization for heavy equipment |
| Rufus’ Workshop | Maintenance, sharpening, and arrow production only; custom work unavailable | Weapon upgrades available: +1 property to one weapon per downtime; costs raw materials (not purchasable) | Masterwork upgrades: permanent +1 to one weapon or piece of armor per session; the forge runs through the night if needed |
| Granary | Standard construction; fire spreads on the first successful arson roll | Fire-resistant treatment on interior walls; arsonist requires two successful rolls to start an uncontrolled fire | Fully protected; fire requires three consecutive failed defensive rounds to spread; the granary stores are the last thing the fort loses |
DM notes on running the table:
Each location upgrade is a physical change the party can see. Do not just tell them “the surgery is upgraded.” Describe Valeria carrying a second chest into a space that now has walls. Describe the ballista crew drilling on the north wall at dawn. Describe the granary’s new clay-plastered walls when the party passes through.
If the party triggers the Level 2 upgrade mid-session, apply the effects at the start of the next scene. If they trigger Level 3 during the siege, the DM decides whether the effects apply immediately (if the trigger was dramatic enough to warrant it) or at the next session.
Cross-reference: camp_economy.qmd contains the full upgrade trigger list, morale pool mechanics, and trader-level effects. This table covers only the physical location changes.
The Germanic Forest
The Teutoburg Forest region: old-growth oak and beech, broken by streams and clearings, with a distinct sense of being older than the Roman roads that stop at its edge. The forest is not sentient. It is not malevolent. It is simply very, very old, and things that are old enough develop weight.
Forest Encounter Zones
Zone 1 – The Treeline (Day 1, morning): The transition from Roman road to forest proper. The road ends at a waymarker that Roman engineers put up forty years ago. It reads “FINES ROMANI” – the edge of Roman territory. Past it, the trees close in within fifty feet. The light changes. The sound changes. There is a specific moment, about one hundred feet into the tree cover, where the last echo of the fort’s daily life disappears entirely.
Encounter probability: Germanic watchers, DC 14 Perception to spot (they won’t reveal themselves first if the party is with Vercingetorix). 4 tribal scouts, Scout stat block, CR 1/4.
Zone 2 – The River Crossing (Day 1, afternoon): Three hours into the forest, the Vitulans river. Spring-swollen, 60 to 90 feet wide depending on where they try to cross. A fallen oak spans the narrowest point (40 feet, 2 feet wide at the base, slippery). See Chapter 3 for the full crossing encounter if the Legate is pursuing.
Navigation: DC 12 Survival to find the best crossing point. On a failure, they find a crossing that looks better and is worse – 70-foot span, no fallen tree, DC 15 Athletics to swim.
Zone 3 – The Deep Forest (Day 2, morning): The forest changes here. The trees are older, some with trunks too wide for three men to span. Carved offering-posts appear every quarter-mile – not threatening, but present. Wildlife avoids the path ahead of the party, which means the forest seems unusually quiet.
The spear response: On Day 2, the spear begins actively orientating. If it’s wrapped and carried flat, the carrier feels it tipping slightly in one direction throughout the morning. By noon, anyone within 10 feet of it can feel a faint warmth from the wrappings.
Zone 4 – The Tribal Territory (Day 2, afternoon): Vercingetorix’s tribe operates in this zone. Thusnelda’s scouts are here. Signs of recent habitation: a fire-circle used in the last week, cleared undergrowth, a cache of dried meat in a split oak (the party can take it – it’s better than their rations and Vercingetorix approves of soldiers who notice useful things).
Encounter: Thusnelda’s scouts find the party, not the other way around. See Chapter 3.
Forest Weather and Omens
Frontier soldiers learn to read the forest the way sailors read the sea. Each day, roll or choose one condition to color every scene. Use it when describing the air, the mud on boots, or the smell clinging to cloaks.
| d6 | Condition | Signs | Effect |
|---|---|---|---|
| 1 | Low fog | Mist waist-high, breath condenses even at noon | Perception relying on sight suffers disadvantage beyond 30 feet |
| 2 | Drumming rain | Broad leaves hiss, armor straps swell with water | Ranged weapon attacks beyond normal range take disadvantage |
| 3 | Glitter frost | Branches encased in thin ice, every step snaps twigs | Stealth checks are 2 points harder unless characters wrap feet in cloth |
| 4 | Electric stillness | Hair rises on arms, no insects audible | Next thunderclap arrives within an hour: lightning strikes any elevated metal |
| 5 | Carrying wind | Voices travel far, distant horns sound nearer than they are | Germanic scouts hear the party from twice the normal distance |
| 6 | Resin heat | Sunlight pours through breaks in the canopy, sap smell strong | Fatigue sets in quickly: the first forced march check of the day is at disadvantage |
Travel Hazards Table
Add one of these beats during a march segment to remind players that the forest is alive. They are not random encounters; they are tone setters that can become scenes if the party engages.
| d8 | Hazard | Cue | What it means |
|---|---|---|---|
| 1 | Wind-felled oak | Fresh break, sap still wet | Recent storm; crossing becomes difficult terrain unless cleared |
| 2 | Hanging charms | Bones and amber hung with gut strings | Thusnelda’s people marked a boundary; Persuasion DC 13 to pass without offense |
| 3 | Silent animal trail | Hoofprints stop abruptly in churned mud | Something large hunts nearby; advantage on Survival to track or avoid |
| 4 | Old Roman standard | Fragment of an eagle standard nailed to a tree | Evidence of the Legate’s earlier expeditions; Investigation DC 12 reveals dates |
| 5 | Boggy hollow | Peat smell, ground quivers underfoot | Movement halved for 60 feet; failing DC 12 Acrobatics means boot lost to mud |
| 6 | Watchful raven | Bird follows the party for an hour | If acknowledged respectfully, the next Perception check has advantage; if ignored, Germanic scouts gain advantage on their next check |
| 7 | Blood-slick stones | Thin smear crossing the path | Remains of a sacrifice; Religion DC 14 spots runes requesting secrecy |
| 8 | Whispering pines | Trees creak in human cadence when wind blows | Wisdom save DC 12 or characters imagine voices from home, imposing disadvantage on the next Insight check |
Vercingetorix’s Village
A palisaded settlement of 80 people in a natural clearing beside a tributary of the Vitulans. The village is temporary in the Germanic sense: they’ve been here for perhaps 15 years, will move within another 10. The buildings are well-constructed longhouses, the central fire is maintained by a dedicated elder, and the village has the organized casualness of people who know exactly where everything is.
Key locations in the village:
The longhouse of the chieftain: Where Vercingetorix receives guests. Long and smoky, with a central hearth and benches along both walls hung with weapons, pelts, and amber. The ceiling is low. The fire always burns.
The healing-woman’s house: Separate, slightly outside the palisade to the east. Smells of smoke and something herbal and specific that resists identification. The healing-woman is not Thusnelda – she tends the grove, which is an hour’s walk from the village. The healing-woman is her apprentice, a 30-year-old named Skadi, who does not speak Latin but who watches the party with a scholar’s eyes.
The weapon-store: A locked longhouse (iron lock, iron key worn by the village’s senior warrior). Inside: spears, shields, hunting bows, and one Roman-made gladius taken as a war trophy three campaigns ago. Vercingetorix is aware the party has noticed it and will not mention it. If they do: “It was won fairly. I kept it.”
Village rhythm: Dawn is silent except for the water carriers; no one speaks until the first smoke rises. Midday is loud with training drills in the clearing – adolescents practicing spear thrusts against a hanging log. Evening hums with layered sound: hand drums, work songs in half-Latin from traders, the low chanting of the grove-keepers out past the palisade. Use the rhythm to telegraph time jumps when the party lingers.
Faces the party keeps meeting:
- Skadi, apprentice healer. Quiet, observes Roman posture. Sample line: “You carry yourselves like men waiting to be told what to feel.”
- Arnulf, the fire-keeper. Laughs with his whole body, resents Corvinus but likes Varro. Sample line: “Romans eat like wolves: fast, suspicious, grateful afterward.”
- Edda, veteran spear-mother. Looks the party in the eye, counts scars. Sample line: “Leave your boots by the door. The ground remembers who disrespects it.”
Each offers a different entry point into alliance: Skadi trades knowledge for medical supplies, Arnulf wants news from the Limes, Edda demands proof of humility before sharing tribal history. Track which NPCs the party impresses; it matters when Vercingetorix polls his people in Chapter 3.
The Sacred Grove
One hour’s walk from Vercingetorix’s village, east through the deep forest. The path is not marked with Roman waymarkers. It is marked with carved rune-posts, one every hundred feet, which glow faintly at night with a light that has no heat.
The Grove Itself
A natural clearing, roughly 80 feet in diameter. The clearing has no fallen leaves despite the trees around it. The ground is grass – short, dark green, slightly wrong for the season. Seven standing stones ring the central altar, each roughly nine feet tall and carved with spiraling runes that shift when observed indirectly.
The stones:
Each stone is a single carved pillar. They predate the surrounding trees, which grew up around them. The carvings cover every surface: not decorative, but dense with text in Early Proto-Germanic. No one alive can read them all, including Thusnelda. She was taught the critical sections and knows that the rest has been illegible since her teacher’s time.
The stones have individual names in Thusnelda’s tradition. She doesn’t share these unless specifically asked. If asked, she gives one: “That one is ‘the one that listens.’ I was told not to speak to it directly.”
The altar:
A single granite block, waist height, 6 feet long and 4 feet wide. It has been used for ritual purposes for longer than Germanic tradition can document – there is a layer of ash beneath the grass that predates the current grove-keeper tradition by at least a century. The surface is marked with the impressions of many offerings but is not stained.
When the spear is placed on the altar, it fits as if the altar was made for it.
The lock:
In the base of the altar’s northwest face, concealed by a carved rune, is a keyhole. This is the lock that fits the iron key from the archive below the fort. If opened, a stone drawer reveals: a folded bronze strip with the original sealing text – the oath sworn at the time the spear was first sealed here. It is the same oath that must be spoken to unseal the spear’s destruction. Thusnelda knows this oath by heart. The drawer also contains a small vial of what appears to be water but is always exactly body temperature. It has no effect the party can detect. It is not water. Thusnelda, if shown it, becomes very still for a moment and says: “Put it back.”
The grove’s behavior:
The grove does not communicate in words. It communicates in temperature and sound. Acceptance: the altar warms. Rejection: the altar stays cold. Completion: a sound, described differently by different witnesses – wind in leaves, or a bell, or a voice almost but not quite formed into language. Every witness agrees on one thing: the sound comes from underneath the altar, not from above.
Approaching the Grove
The hour-long walk from the village to the grove is its own scene. Layer the following signs as the party approaches:
- Birdfall: A raven drops a feather directly in front of the path. Thusnelda reads it as permission; Romans may read it as an omen of death. Religion DC 12 to interpret correctly.
- Pulse in the soil: Every few steps the ground trembles lightly, as if something vast is breathing below. Characters attuned to the spear feel the tremor mirrored in their grip.
- Color shift: Greens desaturate the closer they get, replaced by ash-gray bark and black moss that stains fingertips.
- Sound gutter: All ambient noise fades five minutes before the grove. Even armor creaks feel muffled. Call for Wisdom saves (DC 11) to avoid narrating their own thoughts aloud to fill the silence; failure gives Germanic NPCs leverage during the ritual.
Standing Stone Reactions
Each stone is a witness. When a character touches a stone, roll a d6 or choose an effect.
| d6 | Stone response | Effect |
|---|---|---|
| 1 | Stone warms | Grants advantage on the next Religion check made within the grove |
| 2 | Rune shifts to match the character’s native script | Reveals one line of the oath required to complete the ritual |
| 3 | Moss blackens under the character’s hand | That character gains 1 corruption unless they withdraw immediately |
| 4 | Tiny sparks flicker along the carving | The grove demands an offering: 1 Hit Die or a treasured possession |
| 5 | Whisper in Proto-Germanic | Only characters who learned the language understand it: “Do you claim what you will not pay for?” |
| 6 | Cold fog spills from the base | The grove is displeased; all Persuasion checks with Thusnelda suffer disadvantage until an offering is made |
Ritual Consequences
After the ritual begins, the grove remembers what each character brought to it. Track three states to inform later chapters:
- Satisfied grove: The altar accepted the offer, the stones glowed, the ground warmed. Result: Thusnelda gains a +2 circumstance bonus to social checks with Roman authorities because the grove’s blessing shields her.
- Balanced grove: Offerings were adequate, no additional signs. Result: No immediate boon or penalty.
- Angered grove: Someone lied or withheld. Signs: cold altar, standing stones weep sap, wind tears through the clearing. Result: All corruption checks in Chapter 4 start at disadvantage until the players perform a cleansing rite in Rome.
Vindolanda Under Siege (Session 4)
Player-safe descriptions. Use these to show the fort’s state as the siege tightens and Mars begins to bleed through reality.
The Vicus and Bathhouse
What it is: The civilian settlement and the fort’s social release valve. Traders, families, and unofficial taverns all clustered along the east road.
What it looks like during the siege:
Shutters stay closed unless soldiers knock with the watchword. The bath furnace belches smoke because there is no time to clean the flues. Children sweep rainwater away from thresholds while their parents barter for salt and rumors. At night the entire vicus gathers at the shrine of Mercury, lighting candles for soldiers who might not return.
What the party can do here: - Secure civilian cooperation before the procession (Scene 2) - Gather intelligence on saboteurs (DC 13 Persuasion; the vicus knows who sneaks near the granary) - Offer protection or requisition supplies, but every demand shifts reputation per camp_economy.qmd
Running note: If the vicus feels abandoned, the escort faces unrest as civilians try to flee through the same tunnels the party needs.
The Gates and Ditches
What they are: The north gate faces the forest and siege engines; the south gate faces the vicus and Vercingetorix’s camp. The ditch system is the fort’s lungs.
What they look like during the siege:
North gate: a wagon body lashed over shattered timbers, mud up to the knee, and a battering ram scar that never quite dries. South gate: truce flags whipping in the wind, Germanic envoys waiting under watchful pila, and the sour smell of rainwater trapped in the ditch.
What the party can do here: - Stage diversions with Vercingetorix’s warriors (Scene 2) - Detect raven couriers trying to enter (DC 14 Perception) - Position trusted soldiers to seal the gate once the escort departs
Running note: Every time the party leaves the walls unmanned to handle another crisis, morale drops. Track gate integrity in the Continuity Audit; if it fails, the procession faces waves of enemies underground.
The Magical Ecosystem Around Vindolanda
GM reference. The natural world around the fort is not neutral. It is informed by three thousand years of human worship, two divine presences (Mars through the spear, the spring Genius Loci through its water), and a landscape that remembers what happened here before Rome arrived. The creatures, plants, and sacred sites below are not random encounter tables. They are a layered information system the party can learn to read.
The Vindolanda Spring: Genius Loci
Beneath the northeast corner of the principia, under a flagstone that does not quite sit flush, a spring has run cold and clear since before the first stone was cut. Roman engineers sealed it when they built the headquarters building. They left a small grate, covered it with a bronze plate engraved with a serpent, and officially recorded the spring as “controlled drainage.”
The spring is not drainage. It is the Genius Loci of this site, the spirit that inhabited this ground before the Romans named it, before the Brigantes used it as a seasonal crossing point, before anyone left a name at all.
What the spring is: A living presence. Patient, old, not hostile but not welcoming. It has watched every occupant of this site come and go. It is not impressed by Rome. It is not impressed by anything. It has been here longer than the Empire and expects to be here longer still.
What the spring does: Three things, all of them subtle:
- The water runs cold even in summer. Anyone who drinks directly from the grate (requires removing the bronze plate, DC 12 Strength) gains advantage on saving throws against the spear’s corruption influence for the next 48 hours. The water tastes like cold iron and deep earth. It is not pleasant.
- The spring answers questions, once. Only once per character, ever. The question must be spoken aloud into the grate after removing the plate. The answer comes in the sensation of the water changing temperature – warmer for “the danger is close,” colder for “the danger has passed,” a brief pulse of both alternating for “the danger is coming from inside.” The spring does not elaborate.
- The spring suppresses supernatural effects within 30 feet. Lemures cannot form within that radius. The spear’s red glow dims when carried near the grate. This is why the spear’s previous keepers sealed it here: they discovered the suppression effect through trial and error over years.
Spring: Skill Discovery Sequence (GM reference)
The spring’s properties are discovered in tiers. No single check reveals everything.
| DC | Skill | What it reveals |
|---|---|---|
| 11 | Perception | The flagstone in the northeast corner of the principia sits fractionally higher than its neighbors; the gap along one edge allows a faint smell of cold water and stone |
| 13 | History | Roman fort engineering always routes drainage to the south gate; a spring under the headquarters is irregular enough to suggest something was built around it rather than through it |
| 14 | Investigation (5 min) | Removing the plate reveals a bronze grate with a serpent design; the serpent is not Roman – it predates Roman iconography for this region by centuries; DC 15 Religion identifies it as a Brigantian votive style |
| 15 | Religion | The spring is a Genius Loci. DC 17 Religion narrows this: the Genius Loci has received offerings consistently for an estimated 400+ years; the mineral deposits around the grate include amber dust, which Romans do not use for votive offerings but Brigantians do |
| 16 | Arcana (full examination, 10 minutes) | The suppression field extends 30 feet. Magical effects tested against it: spear glow dims, Lemures cannot coalesce, and a DC 11 Perception check while standing in the radius reveals that the spear’s low hum goes silent |
| 17 | Nature or Religion | The spring answers once per character; the questioner must speak directly into the grate with one specific question about safety or threat; the temperature response is described above; the DM must decide the answer based on the current session’s actual situation |
| 19 | Insight (only after the spring has answered) | The spring has been asked a question before, recently. Within the past month. Someone else found the grate. The mineral residue around the edge shows a handprint in dried sediment: too small for a legionary, too large for a child. Cassia. She has not mentioned this. |
The temporal gate: The spring’s answer is a single-use event per character. Once used, the character cannot learn anything new from the spring regardless of future checks. The suppression effect persists whether or not any character discovers it; the party does not need to “activate” it.
If the bronze plate is removed and not replaced: The spring’s suppression field expands to 60 feet but the water begins rising. By the end of the session, the principia floor will have two inches of standing water unless someone replaces the plate or creates a diversion channel (DC 14 Athletics, tools required). The Genius Loci is not threatening anyone; it simply flows where it flows.
The Raven Colony
Forty to sixty ravens roost in the pines east of the fort’s outer ditch. They have been here as long as anyone can remember. The fort’s soldiers feed them scraps from the gate; in return the ravens make noise when strangers approach the east road, which has proven militarily useful enough that no one has ever ordered them killed.
What the soldiers do not know: the ravens are not a colony. They are one distributed intelligence, a collective that formed around the spring’s Genius Loci three generations ago when the spring was first sealed. They are not supernatural creatures. They are ravens. But they are very old ravens, and very attentive ones, and they have learned to encode information in their behavior.
What the ravens encode:
| Raven behavior | Meaning |
|---|---|
| Roosting silently, all facing east | Nothing unusual; the spirit is quiet |
| Three birds walking counterclockwise around the gate | Someone has disturbed the sealed spring grate within the past 24 hours |
| Sudden mass flight northeast | The spear has been moved within the fort; they track its red glow from a distance |
| One bird sitting on the principia roof, not moving | The Genius Loci is aware of something under the ground moving toward the fort |
| Calling in groups of three, short-long-short | A new person in the fort is carrying something with a supernatural charge (rune item, corrupted object, divine mark) |
| Complete silence, all birds present | Mars’ presence is near. This happens in Session 4 and again in Session 5. Every soldier recognizes this silence. None of them can explain how they know what it means. |
Raven Network: Session-by-Session State (GM reference)
The ravens’ behavior across the campaign tracks divine state. DM notes per session:
Session 1: Ravens are normal. After the party enters the vault, check: do they exit with the spear? If yes, three birds land on the east gatepost and do not move until dawn. DC 13 Nature to notice the specificity of this; DC 15 Nature to connect it to the spear.
Session 2: After the Tribune’s night raid, ravens engage the short-long-short calling pattern near whichever NPC is carrying Brutus’ correspondence. DC 13 Perception (automatic if the party is outside at dawn) to hear it; DC 15 Insight to connect the pattern to a specific person in the fort rather than just “something.”
Session 3 (forest journey): No ravens in the deep forest. Ravens are a low-land and edge-habitat bird; their absence in the forest interior is normal. However, at the sacred grove: two ravens are present, sitting on the standing stones. They did not follow the party. DC 15 Religion: ravens are associated with Germanic divine messengers (Huginn and Muninn are Wotan’s, but the concept exists across northern traditions). They are watching the ritual. If the sacrifice is genuine, they leave when it completes. If the sacrifice is token, they stay and watch the party exit, then fly back toward Vindolanda.
Session 4 (siege): Ravens are silent throughout the session. Every soldier in the fort comments on this. The silence begins at the same moment as Mars’ bell rings. DC 11 Perception to notice the silence actively; no check required to hear NPCs comment on it. This is the behavioral tell the party can cross-reference with the table above.
Session 5 (divine arena): When Mars descends, every raven in the colony is visible on the ditch-side trees, perfectly still, all facing the parade ground. They are not afraid. They are watching. When the trial ends and Mars withdraws, they fly together in a single mass east, into the forest, and do not return until two days later. The fort is quieter during those two days in a way no one can quite name.
Cascade unlock: A player who correctly reads raven behavior twice in the same session earns a one-time benefit: the ravens bring them something. Not a magic item. An object: a small piece of amber, a shred of cloth that smells like Brutus’ raven messenger, a finger-bone from the vault. The DM chooses based on what information the party most needs. The ravens drop it at the character’s feet. A DC 11 Perception check to notice the drop; a DC 15 Nature or Religion to understand it was intentional rather than coincidence.
Spring-Keeper Lizards
Lacerta agilis, the sand lizard, is common along the Limes. At Vindolanda specifically, the population in the northeast corner of the fort – near the spring grate – exhibits unusual behavior.
They bask in sun like ordinary lizards. They eat insects like ordinary lizards. But they never leave the 30-foot radius of the spring. Not one. In five years of observation by the current garrison, not one has been found dead outside that radius. Not one has been successfully moved outside it; placed anywhere else in the fort, they navigate back within hours.
They are not magical. They are not familiars. They are lizards that have lived near a supernaturally active spring for so many generations that the spring’s field has become their habitat in some way no Roman naturalist has fully explained.
What they signal:
| Lizard behavior | What it indicates |
|---|---|
| Basking on the spring grate plate | The Genius Loci is at rest; no active threat in its awareness |
| Clustered at the edge of the 30-foot radius, all facing outward | Something supernatural has entered the fort and is moving toward them; the suppression field is active and they are at its boundary |
| None visible anywhere | The spear’s influence is strong enough to have driven them underground; this happens in Sessions 3-4 as the spear’s corruption pulse intensifies |
| Three or more visible after a night they were absent | The suppression effect reasserted; whoever was affecting it has moved or been resolved |
Lizard discovery DCs (GM reference)
| DC | Skill | What it reveals |
|---|---|---|
| 10 | Perception | There are a lot of lizards in this one corner of the fort |
| 13 | Nature | They do not leave the area; you have watched for an hour and none has crossed beyond a specific invisible boundary |
| 15 | Nature (full day of observation) | The boundary is exactly 30 feet from the spring grate; the lizards know where it is without testing it; they treat it as a wall |
| 17 | Arcana or Religion | The boundary corresponds to a known radius effect from mature Genius Loci suppression fields; this is in the classical literature but rarely discussed because most Genius Loci are propitiated through temples, not encountered directly |
Bog-Light Moths
One kilometer northeast of the fort, the ground turns soft. Reeds, cotton-grass, black water between tussocks: a genuine bog, not seasonal flooding but permanent marsh that has been here since the last glaciation.
At night, pale moths drift above the bog’s surface. They are bioluminescent in a way that Roman natural philosophers have never satisfactorily explained. The light is cold blue-white. It does not flicker. It moves against the wind. It is beautiful in a way that makes soldiers who see it uncomfortable in ways they cannot articulate.
The moths encode nothing deliberately. They are moths. But the bog below them contains: three complete Roman skeletons from a prior garrison, two of them with their weapons intact, one of them holding a bronze plate inscribed with a partial prayer to the spring Genius Loci. Also: a Germanic bog deposit, ritual in nature, left approximately 200 years before the fort was built. Also: a second, smaller spring-eye, connected to the same aquifer as the fort’s spring, never sealed, never propitiated, very old and very specific in what it wants.
The Bog: Discovery and Encounter Structure (GM reference)
Getting there: The bog is accessible by leaving the fort’s north postern gate and following the ditch northeast for approximately 20 minutes. It is not patrolled. The ground gets unreliable 100 meters before the bog proper: DC 13 Survival to notice the change and move carefully; failure means 1d4 rounds of movement at half speed through sucking mud.
The skeletons:
| DC | Skill | What it reveals |
|---|---|---|
| 11 | Investigation | Three skeletons visible at low water (late summer only; DC 13 Perception to notice the water level is low enough to look) |
| 13 | History | The weapons are legionary issue, Trajanic-era (early 2nd century); these men predate the current garrison by 50+ years |
| 14 | Medicine | Cause of death for two: blunt force to the skull from behind. One: drowning, hands bound. They were put here deliberately. |
| 16 | Religion | One figure holds a bronze plate. DC 11 Strength to retrieve it from the mud without destroying it. DC 14 Religion to read the inscription: a partial propitiation formula for the spring Genius Loci, stopping mid-sentence. Someone began it and did not finish. |
| 17 | Religion (completed inscription + DC 16 Religion) | The unfinished propitiation suggests the speaker was interrupted. The formula, if completed, would have formally acknowledged the Genius Loci’s claim to the site and asked for its protection. It was never finished. This is why the spring has never been formally allied to the fort – only tolerated, not acknowledged. Completing the formula (DC 15 Religion, 30 minutes, at the spring grate) would change the relationship from “tolerated” to “allied”: the suppression radius expands to 60 feet, the spring’s answer becomes available twice per character, and the Genius Loci becomes aware of the party as individuals rather than as “current occupants.” |
The unsaved spring-eye:
In the center of the bog, recognizable by a slow upwelling of darker water (DC 14 Perception to spot from 20 meters): a second connection to the aquifer. It has no grate. It has no seal. It has received offerings continuously for 200 years from no one anyone can identify – the offerings are current, replaced regularly, always the same: a sprig of bog rosemary, a piece of amber, and a small flat stone with a single rune scratched on it.
The rune changes. DC 15 Religion: it is a different rune each time, rotating through the Elder Futhark in sequence, currently on LAGUZ (water, flow, the unconscious). DC 17 Religion: the sequence has been proceeding for approximately 40 years and will reach SOWILO (sun, victory, clarity) in approximately six more months. Someone is performing a slow ritual whose conclusion date is approximately the time of the campaign’s final session.
The DM decides who is making the offerings. Options: Thusnelda’s periodic visits before the campaign (she has never told anyone); the spring’s own Genius Loci, through means the DM does not need to explain; a third party the campaign has not introduced. The point is not the answer. The point is that something has been happening here for forty years and the party can find the evidence.
The moths: They are moths. They do not attack, do not speak, do not have mechanical effects. If a player asks what happens if they catch one: it is warm to the touch (unexpected; insects are not warm), does not struggle, and goes still in their hand. Its light pulses twice and then dims. It is dead. It was not afraid. It simply stopped. DC 15 Arcana: the bioluminescence is caused by the same aquifer mineral content that makes the spring’s water taste like iron – they have evolved in contact with the field for so long it is part of their biology now. They are not dangerous. They are not useful. They are the bog’s way of being visible.
The Frontier Flora: Mechanical Reference
This section consolidates the plant knowledge from knowledge.qmd into a location-keyed format for quick DM reference. Cross-reference knowledge.qmd “Sacred Flora of the Frontier” for player-discovery tiers.
| Plant | Where found | Primary mechanical use | Session relevance |
|---|---|---|---|
| Wolfsbane (Aconitum) | North ditch edge, dark soil | Corruption suppression preparation (DC 15 Medicine) | Sessions 3-5: spear’s influence peaks |
| Bog rosemary (Andromeda) | Bog northeast of fort | Alp protection compound; also one of the bog offering components | Sessions 1-2: Alp encounters most likely |
| Sacred mistletoe | Oak at the sacred grove (Session 3) | Substitute for grove ritual if the grove is inaccessible | Session 4-5: grove burned or sealed |
| Elder (Sambucus) | Forest edge, 500m north | One question for the wood’s spirit; breaks enchantment sleep | Sessions 2-3: forest encounters |
| Marsh orchid | Bog margin | Mithraic indicator; healing poultice DC 15 Medicine | Session 2: Mithraic connection |
Foraging DCs (field conditions):
| Condition | DC modifier |
|---|---|
| Summer, unhurried | Baseline (as knowledge.qmd) |
| Autumn (Sessions 4-5 timeframe) | +2 (many plants past peak) |
| Under siege conditions | +4 (no time to forage safely; requires a downtime action) |
| With Nature proficiency + Herbalist Kit | -3 |
| With Valeria’s guidance (Trading at Trusted+ tier) | -2 additional |
Encounter Seeds: Magical Ecology in Play
Three ready-to-run moments that bring the ecosystem into active play rather than background texture.
The Drained Ravens (usable Session 1 or 2): At dawn, every raven in the colony is sitting on the east gatepost, motionless. They do not move when approached. DC 11 Nature: ravens do not behave this way. DC 13 Nature: they are alive, not stunned; their eyes track movement; they are watching something specific. DC 15 Perception (follow their gaze): they are all looking at the same window of the principia, the one closest to the spring grate. Something happened there during the night. DC 13 Investigation (check the floor inside): fresh water on the flagstones, spreading from the northeast corner. The bronze plate has been moved.
The Offered Bone (usable Session 2 or 3): A raven drops a finger-bone at the feet of whichever party member has the highest current corruption score. DC 11 Perception to notice the drop. DC 13 Medicine: human, adult, old (50+ years), no fracture pattern consistent with violence. DC 15 Religion: the bone has been worn smooth from handling; it was kept for a long time before being left here. DC 17 History: the style of wear is consistent with Roman funeral practice; someone kept this as a memorial for years before placing it here. It smells faintly of the spring.
The Moth at Midnight (usable Session 3 or 4, fort at night): One moth, separated from the bog colony by at least a kilometer, drifts through an open window into the barracks. Its cold blue light illuminates the room for a moment before it settles on the wall near whoever is standing watch. It stays for one hour, then dies. DC 13 Nature: this species does not leave the bog; they are habitat-bound. DC 15 Arcana: the light pulses in a specific pattern during the hour: the same rhythm as a human heartbeat slowing toward sleep, except it is doing this while the character is wide awake and watching it. DC 17 Arcana: the pattern matches the spring’s suppression field cycle; the moth has drifted into the fort because the field expanded briefly – something near the spring was disrupted, pushing the field outward, and carried the moth with it on the aquifer-charged air.