The Spy Who Came in From the Circus

For almost half a century, Bertram Mills Circus was a household name throughout Britain among both children and adults and it's Director, Cyril Bertram Mills, was one of the best-known and most influential names in the country's entertainment business. But for 40 years, Cyril Mills had also enjoyed a top-secret and wide-ranging career in British intelligence: obtaining the best aerial intelligence on Nazi rearmament for MI6 before WWII; becoming the first case officer to monitor the best double agent (Garbo) of the war after joining MI5; and working part-time during the Cold War 'for MI5 or 6 or both without being paid a penny'. In this remarkable true story, Christopher Andrew, official biographer of 'MI5', brings to life one of the most surprising and fascinating tales of espionage ever told.