The Dragon King's Succubus Bride

Sent to destroy the Dragon King, succubus Seraphina doesn't expect to recognize her mark. Xavier is the stranger who saved her life years ago. Hiding inside a stolen princess's body, she volunteers as his bride despite rumors that he kills the women he takes. As passion grows between them, she learns his secret: cursed for saving her, Xavier will die unless he finds true love before the next full moon.