In 1940, Varian Fry--a Harvard educated American journalist--traveled to Marseille carrying three thousand dollars and a list of imperiled artists and writers he hoped to rescue within a few weeks. Instead, he ended up staying in France for thirteen months, working under the veil of a legitimate relief organization to procure false documents, amass emergency funds, and set up an underground railroad that led over the Pyrenees, into Spain, and finally...