The minor demipower Kiaransalee, drow goddess of vengeance, conspired against Orcus and slew him, supplanting his realm and position and even banishing his name across the planes.
He sought to gain revenge on everyone in the multiverse, and raised his former demonic servants as undead called visages to gather information to aid in his vengeance.
Kiaransalee had sent two of her drow followers to bury his powerful artifact, the Wand of Orcus, in an unreachable vault of stone on the plane of Pandemonium.
This church stood vacant for centuries until bought by a wealthy man named Cruigh Manathas, who ordered his workmen to tear it down.
Secretly, a fighter named Argesh Fiord has been in control of the situation and is using it in an attempt to foment a war between some of the city's factions in revenge for the death of his wife.