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Vaul's Crypt

The dead king's heart still beats beneath the stones.

20 rooms✦crypt✦medium

The crypt lies beneath a ruined funerary chapel, its tombs expanded into a sprawling underground complex by generations of corpse-priests. Its outer chambers remain defensible, but deeper halls have been warped by the awakening spirit of a dead ruler. Every passage seems arranged to guide intruders toward the sealed royal vault.

“
Cold, stale air hangs beneath the earth, carrying wet stone, old incense, and the sweet rot of embalming herbs. Blue witch-lights flicker in cracked skull niches, while distant chains scrape and a slow heartbeat seems to pulse beneath the deepest floors.

☠ Threat

King Vaul, a deathless monarch, is slowly reclaiming his body from the royal vault. His spirit whispers through the crypt, animating corpses, twisting holy symbols, and urging the living to open the final seal. If restored, Vaul will command every dead thing in the surrounding valley and turn the abandoned chapel into the center of a new funerary kingdom.

History

The crypt was built three centuries ago by the Ashen Choir, a priesthood devoted to preserving the remains of King Vaul. When Vaul began ruling through dreams after death, the priests expanded the complex into a prison, placing sacred wards, false tombs, and sacrificial chambers around his vault. The order eventually vanished, leaving only sealed doors and restless servants behind.

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Encounter Table

CR
1/2CR
Wandering Funeral Patrolx2d4

A patrol of dead attendants carries sealed orders from Vaul and pauses to listen at every door.

1CR
Blackwater Deadx1d3

Blackwater corpses ooze from floor drains, leaving wet handprints on walls and doors.

2CR
Bell-Ringer Skeletonx1

A skeletal bell-ringer drags a chain of tiny bronze bells and tries to summon reinforcements from nearby rooms.

3CR
Lost Royal Spiritx1

A pale noble spirit wanders the lower halls, mistaking living adventurers for servants and demanding news from the surface.

Rumours & Whispers

1

The ruined chapel's bell rings at midnight, though its bell tower collapsed years ago.

2

A dead king beneath the hill can hear every promise made in the nearby villages.

3

Grave robbers return from the chapel with their memories missing and their mouths full of salt.

4

The royal family still sends offerings to the crypt through agents who travel only after sunset.

5

A priest who entered the crypt claimed that one of the tomb guardians was waiting to be forgiven.

Quest Hooks

1
The Missing Coffin CrewRescue

Quest giver: Mara Venn, a worried undertaker

Grave robbers hired by a local noble have disappeared inside the old chapel, and their families want proof of what happened.

150 gp, burial rights to recovered remains, and a silvered lantern

2
The Bell Beneath the ChapelInvestigation

Quest giver: Brother Halric, priest of the roadside shrine

A village priest believes the crypt's bells have begun ringing again because an ancient ward is failing.

A blessed reliquary that grants advantage on one saving throw against undead magic

3
The King's Unwritten CrimeRetrieval

Quest giver: Ilyra Quill, historian and royal archivist

A scholar wants the records in room-11 before the royal court learns that its founding dynasty was built on a sealed undead king.

A royal pardon, 300 gp, and access to restricted court archives

4
Water from the Dead King's HeartThreat

Quest giver: Old Toman, keeper of the village well

The black water has begun appearing in village wells, carrying whispers that name people who will die next.

A moonstone ward worth 250 gp and lasting protection from scrying for one month

Corridor Notes

Near Room 1 and the entrance passages

Small bronze plaques mark the dead, but several names have been scratched away and replaced with fresh blood.

Corridors around rooms 5, 6, and 12

Thin streams of black water run through shallow channels, always flowing toward Room 20 regardless of slope.

Junction outside rooms 8, 9, and 10

A bell rope descends from the ceiling, ending in a bundle of finger bones. Pulling it causes distant doors to unlock, but also alerts the dead.

Between rooms 14, 15, 16, and 18

Collapsed funerary alcoves conceal old supply caches, bones, and occasional grasping hands animated by residual necromancy.

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