A World in the Balance
Orcus, Lord of the Undead
A powerful demon prince of the Abyss
Orcus is one of the most powerful demons in the Abyss – powerful enough to threaten gods. The Raven Queen is a god whom Orcus particularly wants to destroy, as he hungers to usurp her control over death and the souls of the dead. Under unique circumstances, Orcus is able to send an avatar who wields a portion of his power into the Prime Material plane to do his bidding.
The last known recorded sighting of an Image of Orcus is reported as occurring in Galdegfast, the ancient underground city of the dwarves. According to accounts, the avatar was sent to claim the city as an outpost for the undead legions but was trapped through the actions of a dwarven craftsman and finally dissipated by an intrepid band of adventurers.