Harry Barnett

Harry Barnett, a middle-aged failure, leads a shabby existence. He is reduced to caretaking a friend's villa on the island of Rhodes and working in a bar to earn his keep. Then a guest at the villa - a young woman he had instantly warmed to - disappears on a mountain peak. Under suspicion of her murder, Harry becomes obsessed by the mystery that has changed his life and begins to trace back the movements and encounters that led to the moment where she vanished into the blue.

When Harry Barnett is informed that his son is in hospital in a diabetic coma, he is certain that there must be some mistake, since he does not have a son. But he soon discovers that he does. David Venning was a brilliant mathematician, and his tragic condition is taken to be the result of an accident or a suicide attempt.