Rosemary Delacroix - Latest in a line of defenders of light, denied her fated inheritance Ethan Harkreader - Novice warrior, imbued with mystical power he barely understands Persephone Snow - Siren Ascendant, imperiled by a menacing new threat As the stakes continue to get higher, this trio must form alliances with former flames and previous adversaries to battle against a mysterious Ascendant with sights not only on Persephone, but the entire Ascendant world.