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House of Madness Outside

House of Madness entrance

House of Madness is a small "dungeon" that can be found in Westmarch Heights in Diablo III. It is actually a very small home, in which a man named Hamish stands, but when the Nephalem warns him to run to safety, he reveals himself to be a madman and attacks. Killing him drops his journal, The Ravings of a Deranged Mind.