New York: Street & Smith Publishers, Inc., 1938. Octavo, single issue photo cover, pictorial wrappers. Pulp magazine. Stories by Maxwell Grant (Norgil), Lester Dent (Gadget Man), Theodore Tinsley, Frank Gruber, Norvell W. Page, Laurence Donovan, Steve Fisher, and Alan Hathway. [Reference: Cook, Mystery, Detective and Espionage Magazines, pp. 115-118].