C.J. Sansom rewrites history in a thrilling novel that dares to imagine Britain under the thumb of Nazi Germany.

1952. Twelve years have passed since Churchill lost to the appeasers and Britain surrendered to Nazi Germany. The press, radio, and television are controlled. British Jews face ever greater constraints.

But Churchill's Resistance soldiers on. And in a Birmingham mental hospital, fragile scientist Frank Muncaster holds a secret that could alter the balance of the global struggle forever.

Civil Servant David Fitzgerald, a spy for the Resistance, is given the mission to rescue Frank and get him out of the country. Hard on his heels is Gestapo agent Gunther Hoth, a brilliant, implacable hunter of men, who has Frank and David's innocent wife Sarah directly in his sights.