Born in Iowa, schooled in science at Columbia University, and as American as baseball, George Koval was the ultimate secret agent. Because he had security clearances to the Manhattan Project, he was able to pass invaluable classified information that helped Soviet scientists produce an atomic bomb years earlier than US experts had expected. How did Koval evade detection? In this "expertly researched, psychologically thrilling" history (Library Journal) Ann Hagedorn tells the tale of an unlikely spy, who escaped to Russia and was posthumously awarded its highest civilian honor.