If you were to imagine the perfect spy, you may well be picturing Otto Katz. He was charming, suave, and utterly ruthless. In the golden years of the spy game, from Hitler's rise to power, through the Second World War, and on into the Cold War, Otto Katz was at the centre of Russia's web of international intrigue. His fingerprints can be found on one world changing event after another. Using recently released FBI, MI5 and Czech files, Jonathan Miles has created an action-packed story of the life (or lives) of one of the world's most successful spies . At the same time he paints a vivid portrait of the shadow world that exists behind the headlines where the actions of a man like Katz can, and do, change the course of history.