A high-concept new thriller from the internationally acclaimed Dean Koontz about a young man who owes his life to a heart transplant … but confronts an imminent and far darker death At 34 Ryan Perry suddenly finds himself on a waiting list for a heart transplant. Although he keeps working and looks fit, his condition is deteriorating. Nevertheless, Ryan manages to remain upbeat, and his reward is well deserved. He receives a new heart, and the transplant is a success. One year later, Ryan