Poison-blooded illegitimate daughter Serena is sacrificed to Progenitor Prince Darian—who is immune and addicted. She strikes a deadly pact: her blood, his blade. They crush her family, reclaim the mine, battle the Night Council and Van Helsing. Her poison blood is his only cure; her father's murder is exposed. They split, reunite; his soul falls to the underworld, she brings him back. Curse broken, he proposes under the red moon. Can a bargain born of poison become lifelong love?
