Aggie is a mythological creature on a secret mission. Lydia is a young woman from a magical family with no real powers of her own. And Daniel is a high school boy who's made it his duty to protect his deeply troubled older brother. Then one fateful night, their lives collide in a terrifying accident that changes them all forever. And beneath the surface, the ripple effects of the accident will have more impact than anyone could ever guess . . . changing not only their future, but the fate of an entire town.