Kathleen didn't expect to fall in love with her Alpha brother...She has been bullied in the Moon Stone Pack and she’s been wolf-less. After Kathleen witnesses her mate, Alpha Dawson, cheating on her and is later rejected by him, Kathleen suffers so much pain that she faints in the forest. The alpha king Brady saves her. To Kathleen’s surprise, Brady becomes her new mate. Although Brady’s feeling to Kathleen is mutual, their intimacy is interrupted by a mysterious mark. When Brady finds out that Kathleen is actually his missing sister, their love becomes forbidden.