Hero Finnes-Tiffin, alpha of the Blue-Moon pack, the strongest pack in the world. He is currently 23 and mateless, you usually find your mate of your seventeenth birthday, but he didn't. Josephine Langford, thinks she is human and is eighteen years old. She is mentally unstable due to a horrific, traumatizing accident in which she watches her parents die. She then spent a year in a mental hospital, since the doctors didn't know what was wrong with her. But now she is sent to live with her older sister Kathrine and her sisters 'boyfriend' in a new small town. What happens when Hero's Beta's mate, Kathrine, has her mentally unstable little sister Josephine, come and stay with her? He soon finds out they are mates, but can Hero help Jo save herself from her own self destruction, and put the broken pieces back together? Read to find out.