In the gripping final book in Chloe Neil's bestselling series, a dark witchcraft comes to Chicago, and it could spell the beginning of the downfall of House Cadogan...Since the night of a brutal attack and forced transformation into a vampire, Merit has served as the Guardian and protector of Chicago's House Cadogan. She has saved the Windy City from the forces of darkness time after time, along with her lord and lover, Ethan Sullivan. When, after infiltrating the House, Merit is attacked by a vampire who appears to be under the influence of dark magic, Merit and Ethan realize that the danger closer than they could have imagined. As evil witchcraft spreads throughout the city, Merit must go to war against supernatural forces beyond her understanding. This is her last chance to save everything—and everyone—she loves.