The Vampire Duke's Daylight Bride

Eleanor, a herbalist and astrologer rejected by her family as cursed, is forced to replace her elder sister as bride to the supposedly bloodthirsty Blackwood duke. In truth she carries the Daylight bloodline and follows a century-old promise from her grandmother to break his curse. Eleanor discovers that Damien is a gentle blind lord by day and a violent but protective vampire ruler by night, both forms sharing one soul. When dark mage Morrigan spreads plague and invades the border, the truth emerges that Damien accepted the curse voluntarily to protect the land. Eleanor awakens fully, defeats Morrigan with him, breaks the curse, restores his sight, and becomes his equal guardian of the territory.