From "master of the genre" (the Washington Post) Joseph Kanon, an espionage thriller set at the height of the Cold War, when a captured American who has spied for the KGB is swapped by the British and returns to East Berlin needing to know who arranged his release and what they want from him.

A gripping, meticulously researched and richly detailed historical thriller - a moving story of espionage and war, and people caught up in the most tumultuous events of the twenty-first century.