Watcher of the Black Gate
When the Demongate Wars ended, the forces of good tried to destroy the great black key which controlled the portal. Although the key could not be destroyed, clerics and paladins did manage to shatter it into a hundred pieces. The fragments were then scattered throughout the lands, placed beyond the reach of the demon lords. The Demongate was moved to a secret fortress deep inside a mountain, were it would be protected by powerful wards and an order of knights. An organization of evil cultists known as the Seekers of the Black Key is scouring the world for the fragments. Pitted against them are the Watchers of the Black Gate (sometimes known as Gatekeepers), avowed to protect the Demongate and hunt down demons and Seekers in order to ensure the demons of the Abyss can never be unleashed en masse.