Nessus

Nessus was the ninth and deepest layer of the Nine Hells of Baator.

Don't you know you're not allowed here? — A gelugon guard of the portal to Nessus.

Geography

The layer was a featureless plain with jagged edges that extended 2,500 miles (4,000 kilometers) from east to west and 1,100 miles (1,800 kilometers) from north to south, floating in an endless red void.The plains were scarred by chasms and ravines several thousand miles deep, and were frequently ravaged by fiery storm winds.
The River Styx trickled down into Nessus through a little-known, small offshoot. It was heavily guarded by devils who slew any unauthorized visitors on sight. The river drained into a shallow pool known as the Forgotten Lake, then continued at the bottom of some of the crevasses before percolating through the earth and continuing its course into Gehenna.
The River Lethe also flowed across Nessus, occasionally also falling into its trenches and ravines.

Type

Region

Location under

Nine Hells

Owner/Ruler

Asmodeus

Ruling/Owning Rank

Archduke

Characters in Location

• Asmodeus