Werewolf prince Ronan and vampire prince Lucien are forced into marriage by a peace treaty between their peoples. On their wedding night they fight, accidentally activating the Moon Blood Bond—they must willingly complete it before the blood moon sets or both die. After completing it under duress, they agree to keep their distance—yet jealousy at banquets, a blade taken for the other, and a hunt for the truth draw them together. Regent Victor forges orders and stages an assassination to restart the war; Ronan removes his ring and leaves to protect Lucien, only to be imprisoned by his own father. Lucien tracks him down, and together they expose Victor before the council. After the war, they choose to break the bond—just to confirm "without the bond, I still choose you." Ronan proposes again, the two courts sign a new peace, and they move into a border hunting lodge—from enemies to husbands, not by curse, but by choice.