Novel. Tomorrow, at five in the afternoon, I will kill the clairvoyant. Signed, Picpus. This message is scratched into a cafe blotting pad, prompting Maigret to place 80 fortune tellers under police watch. If it's a hoax, he'll never hear the end of it, but a call comes in: clairvoyant Mademoiselle Jeanne has been fatally stabbed.