Though author Anthony M. Rud made his mark as one of the scribes to appear in the first issue of Weird Tales, and soon after, as a long-time editor of the prestigious Adventure Magazine, he never forgot his series character, J.C.K. ‘Jigger’ Masters, whom he introduced in a series of offbeat, bizarre mysteries which sometimes drifted into the realm of the supernatural in the pages of The Green Book magazine. Upon Rud’s return to writing in 1933, he reintroduced Jigger Masters to the pages of Munsey’s Detective Fiction Weekly, were he quickly became one of DFW’s most popular recurring series characters, appearing a dozen times over the next four years. For the first time, Rud’s initial eight Masters stories are collected, along with the original illustrations by the incomparable Robert A. Graef.