A gifted healer and fierce warrior, Erin has been a Servant of the Bright Heart her entire life, fighting for millennia against the enemies of her people, the Servants of the Dark Heart. After she has a life-altering vision that reveals that the end of the world is quickly approaching, Erin is chosen to be the champion of Light—and the enemy of Darkness. Embarking on a difficult journey into the stronghold of the Dark Heart, Erin discovers that no magical sword can save her, and hers is no simple quest. An epic battle begins here, with her personal struggle upon which the fate of a world rests.