The Dark Tower of Xervah is a dungeon in Valkyrie Profile, situated on the Southwestern coast of Midgard. The building is semi-organic in its design - its architecture incorporating elements like bones, eyes, teeth, hearts and blood vessels - and teeming with undead. Some of the blood vessels will restrict passage unless the hearts are made to beat to provide them with blood. The dungeon is only available on Hard mode, from Chapter 4 onwards.