Sif and Balder travel to Hel, searching for Thor's spirit. The Destroyer (which, unknown to Sif and Balder, is occupied by Lorelei's soul) stops them, declares that it has overthrown Hela, and attacks them for having mortal forms. Sif and Balder escape by using a Norn Stone to become invisible. They meet Garm and learn that Hela had freed the Destroyer from its crystal prison but a spirit possessed the armor and imprisoned Hela and Garm. Balder and Sif seek a mystic sword which can free Hela from her crystal prison but the sword is holding Gar-Toom prisoner. They retrieve the sword, but then are trapped between Gar-Toom and the Destroyer. The Destroyer destroys Gar-Toom while Balder frees Hela, and the pair learn that it is Lorelei who inhabits the Destroyer. She prepares to unleash its ultimate power of disintegration, but is delayed when she accidentally collapses a wall on to herself, and Sif and Balder escape.