Ex-FBI profiler Terry McCaleb called his old job of hunting downserial killers 'blood work'. Nowadays the only blood work he caresabout is for his heart transplant. Eight weeks ago he was dead;now someone else's heart keeps him alive.Then Terry is informed that the anonymous donor of hisheart was a murder victim and remains the focus of a stalledpolice investigation. Unable to ignore evil, even if it means riskinghis new life, McCaleb is inexorably drawn to help close the case.But someone is watching his every move-someone who haskilled before and will kill again . . .