The Beast in the Bone Chambers

Hook

A gargantuan beast assembled from the dead remains guarded the lower Bone Chambers of Castle Avernus. The party destroyed it, then escaped through the tunnel it had used.

Evidence

  • The creature charged from an ossuary supported by bone dogs and humanoid skeletons.
  • Ordinary bludgeoning force appeared less effective against it than Ignatius’s infused strikes.
  • Pearl’s grave magic injured it and forced it back toward a northern tunnel.
  • Carver believed its position suggested that it guarded something beyond the opening.
  • A Boom Stick exploded within the passage and injured both the creature and Ignatius.
  • In the resumed battle, the golem struck Rage twice and tried to retreat through the bones.
  • Carver and Chip destroyed it with a devastating flamethrower; its rib cage collapsed into bone and rock.
  • A large bone dog also fell, but the room continued to raise skeletons from its remains.
  • The party concluded that the ossuary’s horde was effectively endless and escaped through the animal-dug tunnel.

Open questions

  • What enchantment continually raises skeletons in the Bone Chambers?
  • What lies beyond the tunnel, including the lower laboratory the party discovered?
  • Is the ossuary or laboratory connected to Irik’s tomb, Azalin’s phylactery, or something else entirely?

Next steps

The bone golem is destroyed. The party may return only if it finds a reason to confront or bypass the endless skeleton horde.