Respected Fine Art experts are deceived in one of the most intriguing murder cases Inspector Appleby has ever faced, beginning with Gribble, a collector of forgeries whose latest acquisition is found to be a forged forgery! In the words of Appleby himself: 'Those whom the gods wish to destroy, they first make mad. Just a little mad, for a start. Inclined, say, to unreasonable jokes in the course of business. But later - well, very mad indeed.