Mortal Fear

In this “chilling odyssey” ( The New York Times ) from the #1 bestselling author of Coma , a major scientific breakthrough becomes the ultimate experiment in terror when middle-aged patients begin to die—of old age. . . . “Cook’s best . . . builds with stress-testing speed.”— People   At a large Boston clinic, a world-class biologist stumbles upon a miraculous discovery. But when he meets a violent death, a doctor must use more than his medical expertise to explain what he comes to believe