Lost Temple of Thule

The Lost Temple of Thule is a complex of ziggurats partially submerged in the dark waters of a colossal cavern in the Underfoot. The top of the cavern is open, and a several kilometer deep cenote in the Feerrott leads down to it. It is swarming with undead lizardfolk and other servants of Thule. It is a dungeon for levels 50-70.