"1944. Physics professor Alfred Mendl is separated from his family and sent to the men's camp, where all of his belongings are tossed on a roaring fire. His books, his papers, his life's work. The Nazis have no idea what they have just destroyed. And without that physical record, Alfred is one of only two people in the world with his particular knowledge. Knowledge that could start a war, or end it. Nathan Blum works behind a desk at an intelligence...