Tightly paced and cleverly defying the conventions of the classic detective story, this 1933 novel remains a milestone of the inverted mystery subgenre. This edition includes an introduction by CWA Diamond Dagger and Edgar (R) Award-winning author Martin Edwards. At a costume party with the dubious theme of famous murderers and their victims, the know-it-all amateur criminologist Roger Sheringham is settled in for an evening of beer, small...