Second in the exciting new World War II mystery series featuring intrepid research chemist-sleuth Libby Clark. 30th May 1944. In the middle of the night, Libby Clark is roused from sleep by a colleague in distress. Marvin's cousin Frannie has been charged with treason, and he hopes that Libby, with her clear-headed scientific mind, can find a way to help prove her innocence. Libby, a chemist at a secret World War II facility in Oak Ridge, Tennessee,...