During a vicious attack by a renegade vampire, Elaina Stevens survived only thanks to the intervention of another vampire. Rafe has long been a Night Dweller and he has sworn to protect people from the destructive actions of his fellow tribesmen, the feared creatures known as Dark Wanderers. To protect Elaina, Rafe puts his mark on her and touches her soul in the process. But Rafe's vows prohibit him from touching her again... no matter how much she wants it. One day, Elaina learns that Thorne, the vampire who once attacked her, wants to repent of his past sins. However, the process of bringing the Dark Wanderer back to the light requires a person, someone willing to be filled with the essence of both vampires at the same time. To be with the man she loves, Elaina is willing to do almost anything - even act as a host for her greatest enemy. She agrees to host both Rafe and Thorne for one single night, when, in a mysterious act of sex magic, the renegade vampire will be brought back from darkness to light. But she still doesn't know what will happen between vampires and humans when the Ceremony of Three is completed.