In 1937, as the Nazis gained control and anti-Semitism spread in the Free City of Danzig, a majority German city on the Baltic Sea, sixteen-year-old Justus Rosenberg was sent to Paris to finish his education in safety. Three years later, France fell to the Germans. Alone and in danger, penniless and cut off from contact with his family in Poland, Justus fled south. A chance meeting led him to Varian Fry, an American journalist in Marseille who was helping thousands of men and women escape the Nazis, among them artists and intellectuals Hannah Arendt, Marc Chagall, Andre Breton, and Max Ernst. With his German background, understanding of French cultural, and fluency in several languages, including English, Justus became an invaluable member of Fry’s refugee network as a spy and scout. The spry blond who looked even younger than his age flourished in the underground, handling counterfeit documents, secret passwords, and black market currency, surveying escape routes, and dealing with av