Left humiliated on the morning of her mating ceremony, Lydia Vance is forced to face the abandonment of her fiancé, Ethan Ashford, who runs to his childhood sweetheart instead. Not willing to let the ceremony collapse in front of both families, she makes a bold choice and calls Orion Silvermoon—the rival who has challenged her for seven years—to stand beside her as her groom. What starts as a marriage of necessity soon becomes something much more dangerous, because Orion not only protects Lydia, he also reveals the truth he has hidden for years: she was never his enemy, only the woman he had loved in secret.