Kathleen secretly believes in the Irish tales of the faerie folk that her mother told her when she was a little girl. When she returns home to Ireland, she is pulled into the world of faerie because of her belief in their existence. She is drawn into the war between faeries, humans, and faerie hunters, creatures that are neither faerie nor human.

Kath may be human and innocent, but she has power inside of her that she is unaware of, power that both faeries and hunters would kill for. It doesn't help that she finds herself falling for the king of the darkest fey in Ireland, fey who would kill her as soon as look at her, and one in particular who would do all he could to destroy her.