Trapped in a dark cell with no powers and no memory of how she got there, Afiria begins to lose hope that her brother will find her. While searching for his missing twin sister, Ambrose finds himself in a new world, the Dark Realm. With a little help from some old friends and a few new ones, he sets out on a journey toward the Dark Castle to save his sister. Along the way, they must overcome the dark forces conjured by the Dark Lord.