Publisher's Synopsis
Gerald Dawson was the first to die - in an apparent road accident. But when members of his family receive telephone calls informing them of their own imminent demise, and the predictions come true, it's evidently the work of a serial killer. Police at Scotland Yard call in Sawley Garson, a specialist in scientific puzzles. Garson will need all his skills if he is to save the remaining Dawsons from the killer - a man who appears not to exist.
