Fiction:The Firmament/Library of Passing

The Library of Passing is Thanatos's realm in the Underworld.

Description
The realm resembles a great library made out of dull gray rock. Its inner foundations are engraved with the images of skulls.

Inhabitants
A number of psychopomp servants of Thanatos staff the library, leaving it open to curious souls. The gravekeeper himself keeps to his personal quarters, where he oversees all texts written by the library's scribes.