Jack B. Du Brul

"In the summer of 1914, Detective Isaac Bell is asked to investigate a cache of missing rifles but discovers something much more sinister. Whoever broke into this Winchester factory wasn't looking to take weapons; they wanted to leave a radio transmitter, set to summon a fleet of dreaded German U-boats. Someone is trying to keep American supplies from reaching British shores. Bell must hunt down a new piece of technology that is allowing the Germans...