Betrayers' Rise

The Umbra Gates is a temple to the Betrayer Gods near Bazzoxan.

History
The Umbra Gates was the historical seat of power on the Prime Material Plane for the Demon Princes of the Abyss, in Xhorhas. For a brief period of time, there was unity between the demonic Princes, for the purposes of fighting the Prime Deities during the Calamity.

The five Demon Princes of the Abyss are:
 * Demogorgon (self-proclaimed "Prince of Demons"): Demon Prince of Rulers
 * Graz'zt the Seductive ("The Dark Prince"): Demon Prince of Indulgence
 * Juiblex ("The Faceless Lord"): Demon Prince of Shapelessness
 * Orcus: Demon Prince of Undeath
 * Yeenoghu: Demon Prince of Gnolls

For the last 100 years, the Aurora Watch in Bazzoxan has been holding off whatever creatures escape the temple.

Trivia

 * This article assumes that the Demon Princes of the Abyss are the same as in the Forgotten Realms canon of Dungeons & Dragons. However, given the infinite nature of the Abyss, it is entirely possible there are other Demon Princes beyond the five that are known.