Inferno

More accurately, the Inferno is a collection of planes rather than a single one. The common bond between them is that they are the home planes to a loose oligarchy of demon princes. It was one such demon prince, known to history as Pazuzu, who sided with the Triumvirate during the War of Humanity. Another denizen of note is Indrani, modern-day Goddess of Sin and former demon general. Denizens of the Inferno speak a language called Qith.

In general, the populace of Achaea lacks the means to travel to the Inferno. However, it is known that the Apostates are allowed access to a small border portion of this plane through their demonic skills. In this place, on an unassuming island amid an inky-black lake, is an immense pile of charred, broken bones of the innocent. Upon this pile rests a throne carved from a single slab of obsidian. In the firmament above that blazes a fiery crimson, hellish daemons circle through the flames on leathery wings.