When Crown Princess Aurelia flees an arranged marriage to a brutal warlord, her loyal knight Caelum becomes both protector and predator. Bound by a blood oath that awakens his dormant Lycan curse, their dangerous alliance ignites a passion threatening to consume kingdoms. As the Holy Inquisition hunts them with silver fire, Aurelia must harness her forbidden prophecy magic to break the oath-or embrace becoming the Lycan King's eternal consort. But in a world where love is heresy and the moon demands sacrifice, survival may cost their humanity.