Its story
What it looks like
The ruined sanctum is arranged as a vast ritual diagram, with black salt lines forming concentric circles around a dry stone font.
Hundreds of finger bones hang from the ceiling on red cords. Whenever the haunting stirs, the bones turn toward the nearest living creature, and a second set of footsteps echoes one heartbeat after every movement.
Why it is here
To complete the Last Door ritual by transforming living intruders into willing or unwilling members of an eternal spectral congregation
Who made it
The Choir of the Last Door, a cult that believed death was an incomplete initiation
Lore
The Choir of the Last Door sought to invite an unnamed afterlife intelligence into the world.
Their leader promised that every initiate would be remembered forever. When the final sacrifice resisted, the ritual turned inward and bound the entire congregation to the chamber. The dead now attempt to complete the ceremony by making trespassers speak for them.
Where it is found
Ruined temples, sealed catacombs, abandoned monasteries, plague pits, and any chamber where a mass ritual ended in betrayal