In frigid Tumba, Sweden, a gruesome triple homicide attracts the interest of Detective Inspector Joona Linna, who demands to investigate. The killer is at large, and the only witness is the boy whose family was killed before his eyes. With the child wounded and in shock, Linna enlists Dr. Erik Maria Bark to mesmerize him. It's the sort of work that Bark has sworn never to do again, but he breaks that promise - with terrifying results. (Bestseller)