With the Great War raging in Europe, Professor Craig Kennedy and his journalist friend Walter Jameson find New York full of new kinds of crime. In linked cases Kennedy confronts an electro-magnetic gun, a murder syndicate, an air pirate, an ultra-violet ray, a triple mirror and wireless wiretappers, solving each with the laboratory gadgets that made him famous.
Gadget-filled detective fiction from the creator of ‘the American Sherlock Holmes’. Download the free EPUB.