Bullied and wolfless in her pack, Kathleen's life shatters when her mate, Alpha Dawson, publicly rejects her for another. Rescued from despair by the powerful Alpha King Brady, she discovers a shocking new mate bond with him—a dream come true shrouded in immediate tragedy. As their passion grows, a mysterious mark appears, and a devastating truth is revealed: Kathleen is Brady's long-lost sister. Their destined love becomes the ultimate forbidden taboo, forcing them to choose between the sacred pull of the mate bond and the unbreakable law of blood, in a story where finding your true mate might be the greatest curse of all.