A free 5e-compatible underground adventure

The Restless Dead of Stonecross

Three ways below. A maze of broken tombs. One ancient spirit commanding the dead from the darkness.

Four 3rd-level characters 3–4 hours Three combat encounters

Adventure Overview

The Restless Dead of Stonecross is a short underground adventure for four 3rd-level characters. The party is hired to clear skeletons and zombies from the burial grounds beneath the village cemetery, then discovers that a newly awakened wraith is commanding the dead.

The burial complex is not a straight corridor. Six chambers are joined by narrow tunnels, old processional passages, and collapsed side routes. The party can enter through the cemetery stair, a sinkhole among the graves, or an old drainage tunnel below the hill. Their choice changes the order of the first two encounters and the clues they find before facing the wraith.

Running the adventure: Let the players choose their entrance after speaking with the villagers. All three routes eventually reach the same tomb network. A failed check should cost time, hit points, or position—not block progress. The party should have a safe opportunity for one short rest before entering the final tomb.

1. Background and Hook

Stonecross has buried its dead beneath the cemetery hill for nearly four hundred years. The oldest tombs belong to the Wardens of Stonecross, soldiers who died defending the first settlement. Newer crypts were cut around those chambers until the hill became a tangled network of burial halls.

Six nights ago, grave robbers entered through an old drainage tunnel. They broke the seal on the tomb of Warden-Captain Odran Vale and stole the silver funeral chain laid across his sarcophagus. Odran rose as a wraith. His anger spread through the burial grounds, animating skeletons and zombies in the surrounding chambers.

Two gravediggers escaped the cemetery stair. Since then, the dead have emerged after sunset. Reeve Lenora Voss offers the party 150 gp to clear the underground tombs and make the cemetery safe.

Reeve Voss spreads a charcoal sketch of the cemetery across the table. Three black marks circle the hill. “The main stair is here. A sinkhole opened among the north graves, and an old drain comes out below the eastern wall. All three lead underground.” She taps the center of the hill. “Whatever woke our dead is still in there. End it, and Stonecross will pay you one hundred and fifty gold.”

What the Villagers Know

  • The undead include both bare skeletons and recently buried corpses.
  • The main stair is the safest way down, but the gravediggers saw several skeletons beyond it.
  • The sinkhole provides a concealed entrance but requires a dangerous descent.
  • The eastern drain is narrow and partly flooded. Strange whispering has been heard near its opening.
  • A local mason remembers that some interior tunnels collapsed during an earthquake twenty years ago.

Optional Supplies

Priest Halwen provides two flasks of holy water and a rough charcoal rubbing of the Wardens' crest. The crest—a stone bridge beneath three stars—can identify Odran's tomb and the memorial plaques connected to his past.

2. Choosing an Entrance

The characters may inspect all three entrances before choosing. Once underground, they can discover the other routes from inside.

The Cemetery Stair

A locked iron gate blocks the broad stair. Reeve Voss provides the key. This route enters Area 1: Hall of Passing and leads directly toward the skeletons in Area 2. It is the simplest and most obvious approach.

The North Sinkhole

The sinkhole drops 20 feet into Area 3: Gallery of Names. A rope makes the descent automatic. Without one, each character must succeed on a DC 11 Strength (Athletics) or Dexterity (Acrobatics) check or fall the final 10 feet and take 3 (1d6) bludgeoning damage. This route bypasses the skeletons at first and reveals an important clue about Odran.

The Eastern Drain

The drain is a 4-foot-high stone tunnel containing ankle-deep water. A character who succeeds on a DC 12 Wisdom (Perception) check hears wet movement ahead and prevents the zombies in Area 4 from surprising the party. The drain enters directly into Area 4: The Flooded Crypt.

3. Burial Grounds Layout

Use the table below as a map key. Most intact passages are 5 feet wide and 7 feet high. The chambers are dark, their doors are stone, and sound carries easily through the tunnels.

AreaIntact ConnectionsBlocked or Special Route
1. Hall of PassingCemetery stair; Area 2Collapsed passage toward Area 4
2. Bone GalleryAreas 1 and 3Loose stones conceal a crawlway to Area 5
3. Gallery of NamesSinkhole; Areas 2 and 4Collapsed arch to Area 5 can be cleared
4. Flooded CryptEastern drain; Areas 3 and 5Old tunnel toward Area 6 is completely collapsed
5. Broken ReliquaryAreas 4 and 6Clearable route to Area 3; crawlway to Area 2
6. Warden's TombArea 5Final chamber; no exterior entrance

Collapsed Tunnels

  • Area 1 to Area 4: Impassable without several days of excavation.
  • Area 3 to Area 5: Three characters can clear the rubble in 20 minutes. A successful DC 12 group Strength (Athletics) check reduces this to 10 minutes. On a failed group check, falling stone deals 4 (1d8) bludgeoning damage to one randomly chosen worker.
  • Area 2 to Area 5: A DC 13 Wisdom (Perception) check finds a narrow crawlway behind loose burial stones. Medium creatures must squeeze through it. Skeletons cannot follow through the tightest section.
  • Area 4 to Area 6: Completely blocked. Cold air seeping through the rubble hints that the final tomb lies beyond, but the party must reach it through Area 5.

4. Area 1: Hall of Passing

Dusty steps descend to a long chamber lined with shallow alcoves. Clay lamps sit beneath faded paintings of mourners carrying candles into the earth. The silence is broken by a slow scratching sound from somewhere beyond the eastern door.

This chamber is empty. Characters entering by the cemetery stair can examine the disturbed dust and learn that several sets of bony footprints move repeatedly between Areas 1 and 2. A successful DC 11 Intelligence (Investigation) check also reveals bootprints left by three living people—the grave robbers—heading deeper into the complex.

The collapsed southern passage once led to Area 4. Characters examining it can tell that it has been blocked for years and did not cause the recent outbreak.

5. Area 2: The Bone Gallery

6 SkeletonsDifficulty: MediumTerrain: Burial Niches
Stone shelves cover every wall of this wide gallery. Most hold wrapped bodies, but six niches stand empty. Bones lie scattered across the floor beneath them. As the door grinds open, skulls turn toward the sound and six skeletons rise with rusted weapons in their hands.

Six skeletons defend this room. Only four are visible when combat begins. Two remain motionless in upper niches and drop into the chamber at the start of round two. A character with passive Perception 13 or higher notices them before combat.

Tactics and Terrain

  • Three skeletons use shortbows from behind stone biers, gaining half cover. The others advance with shortswords.
  • A character can use an action to push a freestanding burial shelf onto an adjacent skeleton with a successful DC 12 Strength check. The skeleton takes 7 (2d6) bludgeoning damage and falls prone.
  • If the party entered through Area 3, the skeletons face away from that door. A character who succeeds on a DC 12 group Dexterity (Stealth) check gives the party surprise.
  • The skeletons fight until destroyed and do not pursue creatures through the crawlway to Area 5.
Hidden crawlway: Searching the southern wall reveals the crawlway to Area 5 on a successful DC 13 Wisdom (Perception) check. A small burial jar beside it contains 18 gp and a potion of healing.

6. Area 3: Gallery of Names

This chamber is safe. Hundreds of names are carved into its walls. The north sinkhole has broken through the ceiling, leaving roots and loose soil hanging overhead.

A bronze plaque bears the crest of the Wardens and the following inscription:

“Odran Vale, last captain of the Stonecross Wardens. He stood at the bridge when all others fled. Let silver bind his duty, and let honor grant him rest.”

A character who studies the plaque and succeeds on a DC 11 Intelligence (History or Religion) check understands that the silver funeral chain was part of Odran's burial rite. Even on a failure, the inscription clearly suggests that the missing silver object matters.

The party can safely take a short rest here after defeating either the skeletons or zombies. Undead do not enter this memorial gallery unless the characters bring Odran's funerary banner from Area 5 into the room.

7. Area 4: The Flooded Crypt

4 ZombiesDifficulty: MediumTerrain: Flooded Floor
Black water covers the floor of this sunken crypt. Broken coffin lids drift between four stone columns. A pale hand rises from the water and grips the edge of a half-submerged bier. Then another corpse lurches upright behind it.

Four zombies lie beneath the dark water. If the party enters through the eastern drain without detecting them, the zombies have advantage on their initiative checks. Otherwise, the characters see the water moving before combat begins.

Tactics and Terrain

  • The water is 2 feet deep and counts as difficult terrain for creatures without a swim speed. The raised central aisle and stone biers are dry.
  • Two zombies rise near the entrance. The other two emerge at the end of the first round, preventing all four from surrounding one character immediately.
  • A hanging iron censer can be dropped by cutting its rope. A creature beneath it must make a DC 12 Dexterity saving throw, taking 7 (2d6) bludgeoning damage on a failure or half as much on a success.
  • The zombies pursue slowly but do not climb the sinkhole shaft.
Flooded offering box: A corroded box beneath the eastern bier contains 45 sp, a bloodstone worth 25 gp, and one flask of holy water. Finding it requires a DC 12 Wisdom (Perception) check.

8. Area 5: The Broken Reliquary

Cracked shelves and smashed ceremonial objects fill this irregular chamber. Three bedrolls, a crowbar, and an empty leather case show where the grave robbers camped. A dark blood trail ends beside the collapsed route to Area 3.

One robber died here and the others fled. The dead robber's journal explains that they took “the captain's silver chain” and planned to sell it in a market town two days east. They left the burial grounds through the drain shortly before the undead fully awakened.

Funerary Banner

A tattered blue-and-silver banner rests inside an intact cedar case. Its embroidered crest matches Odran's plaque. A character carrying the banner openly gains advantage on Charisma checks made to reason with the wraith. Placing it across Odran's sarcophagus weakens him, as described in Area 6.

Reliquary Trap

A small silver coffer sits beneath a fallen shelf. Lifting it without first noticing the thin wire releases a cloud of grave dust. A character searching the coffer finds the wire with a successful DC 12 Intelligence (Investigation) check. If triggered, creatures within 10 feet must succeed on a DC 12 Constitution saving throw or be poisoned for 10 minutes. A poisoned creature can repeat the save at the end of each minute.

Reliquary treasure: The coffer contains two potions of healing, a silver prayer wheel worth 40 gp, and 22 gp.

9. Area 6: The Warden's Tomb

Odran Vale, WraithDifficulty: HardTerrain: Sealed Tomb
A stone bridge carved in relief crosses the floor of the circular tomb. Beyond it stands a black sarcophagus with a snapped silver clasp. Frost crawls across the lid. A shadow rises behind it, taking the shape of an armored warrior with empty white eyes. “Thieves,” it whispers. “All who enter Stonecross are thieves.”

Speaking with Odran

Odran does not attack immediately unless the party opens his sarcophagus or attacks him. He demands the return of his silver funeral chain. The characters probably do not have it, but they can weaken or lay him to rest in other ways.

  • Promise restitution: A character who presents the robber's journal and succeeds on a DC 14 Charisma (Persuasion) check convinces Odran that the party is pursuing the true thieves. The DC is 12 if the character also carries the funerary banner.
  • Restore his honor: Placing the funerary banner across the sarcophagus and speaking the final line from his memorial plaque automatically suppresses Odran's Life Drain for one round and removes his resistance to nonmagical weapon damage for the rest of the encounter.
  • Offer silver: Placing at least 50 gp worth of silver coins or objects on the sarcophagus counts as a temporary replacement for the chain and grants advantage on the Persuasion check.

On a successful Persuasion check, Odran agrees to return to his tomb for seven days. The party must recover the chain during that time or he rises again. If the party refuses his demand, fails the check by 5 or more, or attacks, combat begins.

Combat

  • Odran begins near the sarcophagus and targets anyone carrying stolen burial treasure before other characters.
  • He uses Gravebound Howl early, then moves through the sarcophagus and pillars to avoid being surrounded.
  • The wraith cannot leave this chamber while the broken clasp remains on the sarcophagus.
  • At 10 hit points or fewer, Odran offers one last bargain: return his chain within seven days, and he will cease fighting.
Keeping the finale fair: Odran is a tomb-bound wraith designed for 3rd-level characters, not the stronger standard wraith. If the party reaches him badly injured, let the memorial inscription and banner weaken him before initiative. If the party is fresh and well equipped, he fights at full strength.

10. Conclusion and Rewards

If Odran is destroyed, the skeletons and zombies collapse immediately. If he is temporarily laid to rest, any surviving undead become motionless but will rise again after seven days unless the chain is returned.

Reeve Voss pays the promised 150 gp once the burial grounds are safe. She also allows the party to keep coins, gems, potions, and objects recovered from the grave robbers' camp, but asks that clearly marked funerary objects be returned.

Recovering the Silver Chain

If the party made peace with Odran, the robber's journal provides an easy follow-up adventure. The surviving thieves are traveling east to sell the chain. They may be simple bandits, servants of a necromancer, or victims now pursued by other undead.

Milestone: Characters who clear the burial grounds, destroy Odran, or secure his peaceful rest have completed the adventure. Award a milestone if appropriate for your campaign.

Enemy Statistics

These simplified statistics include everything needed to run the adventure.

Skeleton

Medium undead, lawful evil

Armor Class 13 (armor scraps)

Hit Points 13 (2d8 + 4)

Speed 30 ft.

STR 10 (+0), DEX 14 (+2), CON 15 (+2), INT 6 (−2), WIS 8 (−1), CHA 5 (−3)

Damage Vulnerabilities bludgeoning

Damage Immunities poison   Condition Immunities exhaustion, poisoned

Senses darkvision 60 ft., passive Perception 9   Languages understands the languages it knew in life but cannot speak   Challenge 1/4 (50 XP)

Actions

Shortsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage.

Shortbow. Ranged Weapon Attack: +4 to hit, range 80/320 ft., one target. Hit: 5 (1d6 + 2) piercing damage.

Zombie

Medium undead, neutral evil

Armor Class 8

Hit Points 22 (3d8 + 9)

Speed 20 ft.

STR 13 (+1), DEX 6 (−2), CON 16 (+3), INT 3 (−4), WIS 6 (−2), CHA 5 (−3)

Saving Throws Wis +0

Damage Immunities poison   Condition Immunities poisoned

Senses darkvision 60 ft., passive Perception 8   Languages understands the languages it knew in life but cannot speak   Challenge 1/4 (50 XP)

Undead Fortitude. If damage reduces the zombie to 0 hit points, it makes a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead.

Actions

Slam. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage.

Odran Vale, Tomb-Bound Wraith

Medium undead, lawful neutral

Armor Class 13

Hit Points 45 (6d8 + 18)

Speed 0 ft., fly 40 ft. (hover)

STR 6 (−2), DEX 16 (+3), CON 16 (+3), INT 11 (+0), WIS 14 (+2), CHA 15 (+2)

Saving Throws Wis +4   Skills Perception +4

Damage Resistances acid, cold, fire, lightning, thunder; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities necrotic, poison   Condition Immunities charmed, exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained

Senses darkvision 60 ft., passive Perception 14   Languages Common   Challenge 3 (700 XP)

Incorporeal Movement. Odran can move through creatures and objects as if they were difficult terrain. He takes 5 (1d10) force damage if he ends his turn inside an object.

Sunlight Sensitivity. While in sunlight, Odran has disadvantage on attack rolls and on Wisdom (Perception) checks that rely on sight.

Tomb Bound. Odran cannot move more than 60 feet from his sarcophagus. If the funerary banner is placed across it and his memorial words are spoken, he loses resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks.

Actions

Spectral Blade. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 10 (2d6 + 3) necrotic damage.

Life Drain (Recharge 5–6). Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 13 (3d6 + 3) necrotic damage. The target must succeed on a DC 12 Constitution saving throw or its hit point maximum is reduced by an amount equal to half the damage taken. This reduction lasts until the target finishes a long rest. The target dies only if this effect reduces its hit point maximum to 0.

Gravebound Howl (1/Day). Each living creature within 15 feet that can hear Odran must succeed on a DC 12 Wisdom saving throw or be frightened until the end of its next turn.

Scaling the Adventure

  • For three characters or a fragile party: Use four skeletons, three zombies, and reduce Odran to 36 hit points. His Life Drain does not reduce maximum hit points.
  • For five characters or an experienced party: Use eight skeletons, five zombies, and increase Odran to 55 hit points.
  • If the party lacks magical weapons: Make the funerary banner easy to find and allow the plaque inscription to remove Odran's weapon resistance before combat begins.
  • If the party skips an encounter: Do not move the missed undead into the final tomb. Their reward is reaching Odran with more resources, while the remaining undead still need to be cleared afterward.

One-Page GM Reference

  • Goal: Clear the underground burial grounds and stop the force animating the dead.
  • Truth: Grave robbers stole Odran Vale's silver funeral chain, waking him as a tomb-bound wraith.
  • Entrances: Cemetery stair to Area 1; sinkhole to Area 3; eastern drain to Area 4.
  • Encounters: Six skeletons in Area 2; four zombies in Area 4; Odran in Area 6.
  • Key clues: Memorial plaque in Area 3; robber's journal and funerary banner in Area 5.
  • Safe rest: Area 3 after either lesser-undead encounter.
  • Final choices: Destroy Odran, replace the missing silver, or promise to recover his chain within seven days.
  • Reward: 150 gp from Reeve Voss plus unclaimed coins, gems, and potions.