Spooks: The Unofficial History of MI5 From M to Miss X 1909-39

PO Box 500, London W2 the nondescript address from behind which one of the worlds most famous secret services hid: MI5. Drawing on previously secret sources, this book lifts the lid on Britains Security Service in its battle against German and Soviet espionage. It tells the sensational stories of the officers and agents and the enemies they confronted, from MI5s creation in 1909 under the direction of Vernon Kell, Britains first spymaster.

Building on the services wartime success, Maxwell Knight (M), MI5s charismatic and eccentric agent runner, penetrated Soviet and Fascist spy networks during the 1920s and 1930s. His agent, Miss X, was instrumental in breaking the Percy Glading spy ring run by the Soviets, while the beautiful Joan Miller and Miss Z helped bring to justice Tyler Kent, who was passing information to the Axis powers.