The Crumbling Ruins are located outside of Mistral City, and are filled with zombies and skeletons. Karpath Antioch went there to close a Hellgate that Xephos and Honeydew later discovered next to another portal in a room filled with The Sands when they were on a quest to save Granny Bacon, who had been afflicted. The heroes also met and killed the undead Reverend John down there, gaining the first piece of Karpath's Map.