Fiction:The Firmament/Ravine of the Damned

The Ravine of the Damned is the realm of the demon lord of dragons, Kaharvoth, within the plane of Irkalla.

Description
As its name suggests, the Ravine of the Damned is an enormous ravine with deep blackened pits serving as the final destination of all evil dragon souls, where they are tormented for all eternity by Kaharvoth and her brood, the damned wyrms. Deep within the Ravine is Kaharvoth's nest, which is a temple of solid gold decorated with the bones of ancient dragons who fell prey to her.

Inhabitants
The damned wyrms, the dragons of Irkalla, are by far the most populous race in the Ravine of the Damned. Many demons conduct business there as well, bartering with the dragons for their riches in exchange for services. Because of the self-centered nature of its draconic inhabitants, Kaharvoth and her brood rarely allow anyone other than themselves to become too influential in the Ravine unless it suits their interests.