THE DOUBLE-CROSS SYSTEM is an authentic document from within the espionage empire of the Second World War, written as a secret report for the Intelligence Commission and released for publication only in 1972. Quite simply, it tells how Britain used the enemy against themselves.
THE DOUBLE-CROSS SYSTEM is not the only document to describe double agents and deception. It is simply the best. Masterman gives us a world of stratagems, inhabited by characters like SNOW, ZIZAG and TRICYCLE. They were known only by these cover names and in them they lived and operated, Nuance became all. Even the methods of communication between the agent and the enemy, whether by wireless, by secret writing, or by personal contact in neutral countries, required empathy on the part of the case officers and planners. The details of a man's wireless style, for example, the warning signals, the very rhythm of the key in sending messages must be mastered so that if the agent should die or for one reason or another be removed, a substitution could be made but not recognised. 'A game played with dynamite in which those who couldn't play were executed. . . . . Should on no account be missed by anyone who enjoys a good thriller. ' Anthony Price, OXFORD MAIL.