Sepulcher is the fourth level of The Ossuary, the fourth episode of Heretic, and the first of the Shadow of the Serpent Riders expansion.

Overall, the level has the appearance of a tomb, featuring a chamber with coffins, some crypt-like rooms, and a concealed outdoor area in the back. This level holds the hidden exit to the fourth secret level in the game.


You start in the courtyard of the building. Once you have entered through the gateway in the distance, you cannot return the same way. Since you will not find much ammunition in the beginning, you might want to explore the courtyard, corner by corner, to find Time Bombs. When you are ready, walk near the barred entrance, and the bars will rocket open temporarily. The center hall of the building has gray doors leading to both the west and east. To the north, there is a high ledge with a detailed back wall. Take the Dragon Claw, search the hall for other items and clear as much opposition as your ammunition allows.

You may now choose which section to visit first. Walk near a gray door to open it for a few seconds. Whether you take the eastern or the western door, 16 golem ghosts will become freed in four chambers when you cross a side of a door. The monsters are unable to open the gray doors, but the doors will open whenever you walk to their proximity. You can fight the golems with your Time Bombs as their chambers contain a Torch, a Chaos Device, an Inferno Orb and a Bag of Holding. If the items are not worth the lost weaponry, you can let the monsters be behind the closed doors and face them later with a better equipment. If you have started from a pistol start, it is recommendable to choose the eastern section first. While it is the longer of the two, the area has an Ethereal Crossbow and a considerable amount of arrows, which would subsequently help in the western section. The mandatory part of the western side is short but has many Undead Warriors and no ammunition. Going there first would cause problems when later facing the golems in the center hall and the monsters on the opposite side.

Behind the door , there is a circular room with four steps in it. Destroy the gargoyles and walk onto the platform on the top. It will descend and reveal a corridor to the sepulcher. It is a decorative hall with nine coffins. At the southern end, two undead warriors can shoot you from behind a couple of windows. Gather the arrows and finally take the Ethereal Crossbow that stands on the odd coffin. The red walls next to the eight other coffins will open allowing Nitrogolems to access the hall. When you enter either of the exposed rooms, you will lower the exit teleporter back in the center hall. It is reasonable to kill the golems as the escape from the area will take some time. Return to the northern end of the sepulcher where an alcove with a switch has been opened. When you press the switch, a new one will become revealed next to the previous. Continue until you have pressed four switches. Each time you activate one, a step in the circular room will also descend slowly. When all four are down, you can return to the center hall. Notice, however, that pressing the last switch will open doors for three disciples to attack.

The door covers a long corridor that ends to a circular room. Beware the nitrogolems that can fire you through windows from the south. In the middle, there is an elevated platform with many undead warriors. When you hit the eagle insignia on the western side of it, the platform will come down. By crossing the descended platform at any other point than its western side, you will yet lower the inner section. The uncovered switch will open the doors around the exit teleporter. Thus, if you already have done the right actions in the eastern section, you can return to the center hall and step onto the exit. If you decide to go on instead, press the switch in the freshly accessed area. The action will open the route to the winding corridor where the nitrogolems could shoot at you. Note that when you have reached the bottom of the first steps, a room with gargoyles will become revealed in the direction you came from. In addition, four walls near the gray door will open freeing more nitrogolems. While they can enter the circular room, it is difficult for them to fire far away from their location. Hence, you can deal with them only when you return.

Once you reach the southern end of the corridor, you will arrive at a hall with an ornamental platform. The area below the structure holds a Tome of Power, a Quiver of Ethereal Arrows and an Energy Orb. There is a staircase at the southern wall allowing you to reach the platform. Collect the Dragon Claw and the six Time Bombs on the structure. You can now backtrack to the center hall. Kill or pass the remaining nitrogolems in the circular room. Their chambers have four units of Ethereal Arrows and two Quartz Flasks for you to collect. Once you return to the central room, you can choose to take the exit portal in the center or explore the secret northern section of the map.


  1. When you press the fourth switch near the sepulcher, a wall will also descend in the eastern Nitrogolem room. Enter the narrow corridor beyond the opened wall and you will get behind the windows where the undead warriors could fire at you. There is a Silver Shield at the eastern post while the western one has a Torch. When you pick up the latter, a door will open at the opposite end exposing four undead warrior ghosts in a chamber.
  2. The mentioned switch has also opened a wall in the opposite Nitrogolem room. Collect the Enchanted Shield at the end of the revealed corridor, and you will open a route back to the courtyard. When you re-enter the area, you will notice that a compartment has been uncovered at the northeastern side. Make sure that you enter the room even if you did not need the items there; doing so will open one of the two pictured doors near the northwestern side of the courtyard.
  3. In the hall with the ornamental platform, there is a staircase that allows you to reach the structure. The long top step is actually an elevator that can be activated by pressing the switch in its eastern wall. On the bottom of the shaft, there is an underground corridor holding a Phoenix Rod. Follow the staircase there to reach a compartment that is guarded by an Iron Lich. If you have problems with fighting the monster in such a narrow environment, enter the room, and a wall will descend connecting the room into the courtyard. The southeastern wall of the yard has opened too, and a new compartment has been uncovered. As previously, go to the room, and a door will open at the other side of the courtyard. Given that you have visited the northeastern room, go to the pictured doors and press the available switch there.
  4. The switch will lower the high ledge in the center hall giving access to the northern section of the building. Destroy the disciples that guard the entrance. (If you are only interested in getting to the secret level, please jump to the fifth secret.) When you come to a fork of three directions, you may choose where to go. To the west, there is a pool of sludge with a Hellstaff in its center. The weapon is surrounded by pods that you can move by pushing or explode. Once you take the weapon, eight Fire Gargoyles will attack from revealed rooms. Kill the monsters with the means you desire and collect the Flame Orbs in their chambers. To the east, there is an otherwise identical setting but instead of a Hellstaff, an Ethereal Crossbow can be found in the pool. To the north of the fork, there is a yard with a hanging body. The structure in the middle hides disciples that will attack when you reach the northern end of the area. After quelling the assault, walk to the northernmost pillar and press the switch inside it. Three staircases will be formed: one becomes built inside the disciple structure and two other beyond the western and eastern walls of the yard. There is another Phoenix Rod on the top of the structure. Use the side corridors to travel to the remaining staircases. The western one will take you onto the corresponding ledge of the yard where a Tome of Power can be found. The eastern one provides a route onto the opposite ledge that holds a Morph Ovum. Notice that there is an iron lich in a corridor.
  5. There is a fake wall near the iron lich. While it seems that the wall only conceals a room with a Ring of Invulnerability, crossing it will also open new areas in the other corridor.

Secret Exit In order to reach the secret exit, Secrets 2-5 must be uncovered first. The western corridor will now have an access to two side rooms. One holds the Wings of Wrath while the other contains a Bag of Holding and the entrance to the secret level.

Firemace In case the Firemace has appeared at the level startup, you will find it from one of five different positions. In order of appearance, they are located...

  • In the eastern circular room.
  • In the chamber of the undead warrior ghosts.
  • In front of the switch in the hall with the ornamental platform.
  • On the western or eastern ledge of the yard in the northern section.

If the weapon did not appear, the next chance to obtain it is either on E4M9 or E4M5.


To be Added

Single-Player Stats


HereticStatIcon Difficulty Level
1-2 3 4-5
GargoyleIcon 30 34 36
FireGargoyleIcon 25 25 25
GolemIcon 18 18 18
NitrogolemGhostIcon 16 16 16
NitrogolemIcon 22 22 22
GolemGhostIcon - - -
UWIcon 13 13 13
UWGhostIcon 4 4 4
DiscipleIcon 10 10 10
WeredragonIcon - - -
SabreclawIcon - - -
OphidianIcon - - -
LichIcon 2 2 2
MaulotaurIcon - - -
SerpentIcon - - -
DsparilIcon - - -
Total 140 144 146

Weapons and Ammo

HereticStatIcon Difficulty Level
1-2 3 4-5
GauntletsSprite - - -
CrossbowSprite 2 2 2
DragonClawSprite 2 2 2
HellstaffSprite 1 1 1
PhoenixRodSprite 2 2 2
FiremaceSprite 5 5 5

HereticStatIcon Difficulty Level
1-2 3 4-5
WandCrystalSprite 19 19 19
GeodeSprite - - -
EtherealArrowSprite 20 20 20
EtherealQuiverSprite 2 2 2
ClawOrbSprite 6 6 6
EnergyOrbSprite 2 2 2
LesserRuneSprite 4 4 4
GreaterRuneSprite 1 1 1
FlameOrbSprite 10 10 10
InfernoOrbSprite 1 1 1
MaceSphereSprite 8 8 8
MaceSpherePileSprite - - -


HereticStatIcon Difficulty Level
1-2 3 4-5
CrystalVialSprite 48 48 48
QuartzFlaskSprite 7 7 7
MysticUrnSprite 1 1 1
SilverSheildSprite 2 2 2
EnShieldSprite 1 1 1
TorchSprite 2 2 2
MapScrollSprite - - -
BOHSprite 2 2 2
ShadowsphereSprite 1 1 1
TomePowerSprite 2 2 2
InvRingSprite 1 1 1
WingsSprite 1 1 1
ChaosDeviceSprite 1 1 1
EggSprite 1 1 1
TimeBombSprite 14 14 14

Multiplayer Stats

To be Added

Notes & Trivia

  • This is the only non-boss level of Heretic to not have any keys.
  • For some reason, this level does not have any ambient sounds.
  • Aside from a variance in Gargoyles, all monsters and item pickups for this level are identical across all skill levels.

External Links

Heretic - Episodes & Levels
Episode 1
City of the Damned
The DocksThe DungeonsThe GatehouseThe Guard TowerThe CitadelThe Cathedral
The CryptsHell's MawThe Graveyard
Episode 2
Hell's Maw
The CraterThe Lava PitsThe River of FireThe Ice GrottoThe CatacombsThe Labyrinth
The Great HallThe Portals of ChaosThe Glacier
Episode 3
The Dome of D'Sparil
The StorehouseThe CesspoolThe ConfluenceThe Azure FortressThe Ophidian Lair
The Halls of FearThe ChasmD'Sparil's KeepThe Aquifer
Episode 4
The Ossuary
CatafalqueBlockhouseAmbulatorySepulcherGreat StairHalls of the Apostate
Ramparts of PerditionShattered BridgeMausoleum
Episode 5
The Stagnant Demesne
Ochre CliffsRapidsQuayCourtyardHydratyrColonnadeFoetid Manse
Field of JudgementSkein of D'Sparil
Extra Episode
Fate's Path
Raven's LairThe Water ShrineAmerican's Legacy
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