In Die Walküre, the story of the Ring moves from the gods' home, Valhalla, to Earth. Having brought Freia's freedom with the ring in Das Rheingold, Wotan sets about regaining the golden band and its unique power. Wotan must sacrifice his son Siegmund, renounce a daughter, Sieglinde, and abandon his favorite child, Brünnhilde, the leader of the Valkyries.