The Serpent's Sin : A steamy dark fantasy romance - Kathryn Ann Kingsley

To destroy the vampires who killed her family... She must become one of them. Nadi is trapped in a deadly alliance with Raziel Nostrom. After a honeymoon soaked in blood and desire, they make a pact-to take down his criminal family together. Now Nadi is at the heart of the Nostrom empire, pretending to be a vampire. If her act slips even for a moment, they will tear her apart. Raziel holds Nadi's life in his hands. And her heart... His wicked smile sets her body aflame, drawing her closer and closer. Still, he is a born killer-alluring and utterly ruthless. He could turn on her in an instant. But Raziel is not the only one in his family with a taste for betrayal... When his brother and sister approach her with proposals of their own, Nadi faces a desperate choice. Will she stand by Raziel, as the world turns against him? Or seize the perfect chance to destroy his family forever?A thrilling and addictive dark vampire romance, the Bloodlines series is perfect for fans of Carissa Broadbent, Keri Lake, and Kaylie Smith.