<p><b>From a <i>New York Times</i> bestselling author comes the chilling follow-up to the Thriller Award winner <i>The Body Reader</i>.</b></p><p>Months after discovering the mastermind behind her own kidnapping, Detective Jude Fontaine is dealing with the past the only way she knows how: by returning to every dark corner of it. But it’s a new, escalating series of mass slayings that has become her latest obsession at Homicide.</p><p>At first, Jude and her partner, Detective Uriah Ashby, can see no pattern to the seemingly random methods, the crime scenes, or the victims—until they’re approached by a brilliantly compulsive math professor. He believes that the madman’s next move is not incalculable; in fact, it’s all part of a sequential and ingenious numerical riddle. His theory is adding up. The body count is rising.</p><p>But when the latest victim is found in Jude’s apartment, the puzzle comes with a personal twist that’s going to test the breaking point of her already-fragile state of mind. For all she knows, her number may be up.</p>