Slaying the Vampire Conqueror by Carissa Broadbent

Sylke is a blind acolyte serving the Goddess of Death, trained to use her heightened physical and magical senses to become a lethal assassin. Her order tasks her with a high-stakes mission: infiltrate the enemy court and assassinate Atres, a brutal vampire commander conquering territories across the realm.

However, when Sylke gets close to her target, she realizes Atres is not the mindless monster her order led her to believe. Burdened by his own curse and desperate to save his people, Atres proves to be a far more complex adversary. As secrets behind the war unfold, Sylke finds herself caught between her sacred duty to kill him and a deep, unexpected connection forming between them.