The Halls of Agony is a dungeon area within Diablo III that was first seen in the Blizzcon 2010 demo. It is presumably part of Act I, but the name is likely subject to change. The area served as the starting location for players in the PvM demo. Based on the quest information provided in the demo, it is part of King Leoric's dungeon. The Halls of Agony were linked to another area: the [Highlands Passage].