This first ever biography of the enigmatic Whittaker Chambers draws on materials from forty archives, including still-classified KGB dossiers, to trace the remarkable journey that led Chambers to center stage in America's greatest political trial. This complex portrait is rich in startling new information about Chambers' years as a Communist agent and then defector, hunted by the KGB; his conversion to Quakerism; his secret sexual turmoil; and his turbulent decade at Time magazine, where he rose from obscurity to transform the magazine into an oracle of apocalyptic anti-Communism. But all this was a prelude to Chambers' memorable testimony against Alger Hiss in the spy case that changed America. Tanenhaus re-creates the Hiss case in all its improbable twists and turns, disentangling the motives that propelled a vivid cast of characters in unpredictable directions.