Once a generation, the rift between the paranormal world and the human world opens, allowing supernatural entities to cross. Vampire, demon, or shapeshifter, they can save the world-or send it spiraling into chaos. The next opening of the rift is coming-and its consequences will be deadly. A rogue group of human-hating preternaturals is planning an apocalyptic attack, but the Council of Preternaturals may have found the key to saving the world: Keira O'Brien, a fey with a long criminal record, whose empathic abilities once made her the queen of con artists. If she successfully infiltrates the dangerous faction, the sins of her past will be forgiven. Keira isn't the only agent working against the rogue prets. Finn Evnissyen, a powerful demon with a dark lineage, is a hired assassin looking for a way out. If he stops the threat, he will finally earn his freedom. As the rift fast approaches, and danger escalates, Finn and Keira must discover if they're on the same side-or sleeping with the enemy . . .