Publisher's Synopsis
The story is a lively detective story, and the book opens with a murder and closes with the revelation of the name of the murderer. A picture on the retina of the eye of the murdered man was at first thought to be a clue by which the assassin's name could be discovered. Kodaks, Rontgen rays, and all the most modern inventions find a place in this thrilling story, which is crowded with incident, adventure, and Gallic wit. Those who like murder stories will find this a novel one, and will follow the philosophical and persistent detective, Bernardet, with keen interest as he works out the various clues that at last lead him to the discovery of the criminal who murdered M. Rovere.
