The A.B.C. Murders / Agatha Christie / 248 pages / Deceased Author November Challenge

Although the murders are named for the railway guide (ABC) found at the scene, it soon becomes frighteningly apparent that the killer is, in fact, murdering by the alphabet.  First a person whose name begins with A in a location that begins with the same letter; then B; then C...and the pattern becomes manifest and the authorities rush to Thwart the murderer's next attempt.  Retired sleuth Poirot and inspector Hastings rush to prevent more deaths.  Is Alexander Bonaparte Cast the guilty party?  This is a mini tour of England led by both scallywags and intrepid heroes.