The A.B.C. Murders
Agatha Christie
Mass Market Paperback
(Dell, March 15, 1968)
Back cover reads: "The first letter warned Hercule Poirot where the killer would strike. Andover, it said, on the 21st. But Poirot was too late to save old Mrs. Ascher from death. When the second letter came, Poirot moved fast. But again, he was too late. This time the victim was a good-looking waitress named Betty Barnard, and she was found dead on the beach, strangled with her own belt. Each letter was signed A.B.C. Each victim was found with an A.B.C. railroad timetable under her body. There was little else for Poirot to go on. For the first time in his career the master sleuth was powerless against a maniacal killer who was running circles around the police of an entire nation!"