In Norse mythology, Muspelheim (more commonly spelled Muspellheim) is 1 of the 9 worlds that comprise the universe. It is a land of fire located in the far south. It is inhabited by fire giants. It is ruled by the fire giant, Surtr, who is fated to burn down Yggdrasil, the World Tree at Ragnarok. Muspellheim is Norse for “home of desolation”. The flames of Muspellheim are known for melting the ice of Niflheim, the world of ice, mist, and darkness in the far north, creating water and the first lifeform, the frost giant Ymir.