The Lair of the Keeper

According to the Book:

At the northern edge of the Demon Wastes, a vast chasm in the earth leads down into the depths of Khyber. Legends describe many perils that lie beneath—the River of Blood and Bone, the Chamber of Secret Thoughts, the Legion of the Forgotten Dead—but most deadly of all is said to be the Lair of the Keeper. This place hallowed to one of the Dark Six, the Sovereign Lord of Death and Decay, contains many trapped souls held by the Khyber dragonshards that grow from the walls and floor. Legends say that those who venture here to rescue others often become trapped in turn.
Both the Lair of the Keeper and the chasm leading to it are powerful manifest zones linked to Dolurrh, the Realm of the Dead. All spells are impeded here. Those who enter the chasm are subject to the normal entrapping effect of the plane of Dolurrh, except that those who fall prey to the effect are absorbed by and imprisoned within the dark dragonshards rather than becoming shades. They retain their memories but are unable to free themselves.
Those who follow the teachings of the Dark Six believe that the Keeper himself operates within this foul place. Whether the soul-trapping properties of the Lair of the Keeper have anything to do with gods or just occur due to the interaction of naturally binding Khyber shards and the manifest zone is a debate for scholars and theologians to engage in—and many do, at great length.

Type

Abyss