Nessus

Nessus is the ninth and deepest layer of The Nine Hells of Baator.

Geography

The layer is a featureless plain with jagged edges that extends 5,000 kilometres from east to west and 2,000 kilometres from north to south, floating in an endless red void. The plains are scarred by chasms and ravines several thousand kilometres deep, and are frequently ravaged by fiery storm winds.
The River Styx trickles down into Nessus through a little-known, small offshoot. It is heavily guarded by devils who slay any unauthorised visitors on sight. The river drains into a shallow pool known as the Forgotten Lake, then continues at the bottom of some of the crevasses before percolating through the earth.
The River Lethe also flows across Nessus, occasionally also falling into its trenches and ravines.

Type

Plane of Existence

Location under

The Nine Hells of Baator

Owner/Ruler

Asmodeus