Infinite Layers of the Abyss

The Infinite Layers of the Abyss, sometimes called the Abyss or the Infinite Layers, is a realm of chaos and evil and home to the demons. The Abyss itself creates demons - if one is killed, its essence returns to the Abyss to be reborn from the darkness and evil.

Geography
The Infinite Layers of the Abyss is a dark, terrible, nightmare-filled demonic evil realm. There is no rhyme or reason to the layers, no consistancy in geography. It ranges form burning deserts, to poisonous swamps, to mazes of razor sharp rock, to frozen wastelands, to lava-filled volcanic hellscapes, to vast oceans and lush jungles.

Denizens
The drow goddess, Lolth, goddess of spiders, shadows and lies rules a region of the Abyss known as the Demonweb Pit.

Orcus, Prince of the Undead, rules over a level of the Abyss filled with demons and legions of the undead and seeks to usurp the Raven Queen as the new God of Death.