With them, and with the world of the barbaric, pagan Nibelungs—an irrational, heroic, mystic world, beset by treachery, overwhelmed by violence, drowned in blood, and culminating in the Goetterdaemmerung, the twilight of the gods, as Valhalla, set on fire by Wotan after all his vicissitudes, goes up in flames in an orgy of self-willed annihilation which has always fascinated the German mind and answered some terrible longing in the German soul.