More than forty criminal heroes are examined in this volume. They include evil characters such as Dr. Fu Manchu, Li Shoon, Black Star, the Spider, Rafferty, Mr. Clackworthy, Elegant Edward, Big-nose Charlie, Thubway Tham, the Thunderbolt, the Man in Purple, and the Crimson Clown, plus many, many more! The development of these characters is traced across more than two decades of crime fiction published in Detective Story Magazine, Flynn's, Black Mask, and other magazines. The conventions that made these stories a special part of popular fiction are examined in detail.