Fionn Mor was once the king of Ireland, a fearless warrior who led the tribes against the invading fairies. He could not win that war, and in order to save his family, he became the husband of the fairy queen. Fionn ran away, becoming something he once despised, and the people he loved betrayed him because of it. Centuries have passed, and it's time to open the gates to the fairy world and take revenge on the fairy queen. At sixteen, Rose Kelly discovered family secrets that changed her forever. Years have passed, and she still has not found a place for herself, and travels around Europe in search of the elusive “something”. When she is attacked by a vampire, not only is she thrust into a world of the supernatural she never knew existed, but a blow to the head breaks the spell on her mind and unleashes unimaginable powers. And with them come questions. And Fionn Mor claims he can answer these questions. Rose agrees to travel with the powerful and mysterious Fionn to Ireland, but soon realizes that she is a pawn in his plan for revenge. Their struggle leads to a strong bond that will force them to face an impossible choice between intense love... and dark vengeance.