The Blue Lights: A Mystery/Detective Thriller Classic By Frederic Arnold Kummer!

The kidnapping of an American millionaire's infant son in Paris, in broad daylight, from a field in the Bois de Boulogne, seems inexplicable until Richard Duvall applies "the inexorable laws of logic and deduction . . . to arrive at a solution as astonishing as it is simple, when once it has been reached."