The story of the breaking of the Lorenz machine ? more complex and secure than Enigma? in the words of the man who broke it The breaking of the Enigma machine is one of the most heroic stories of the Second World War, and highlights the crucial work of the codebreakers at Bletchley Park which shortened the war by several years. But there was another code machine used by Hitler himself to convey messages to his top commanders in the field. A machine more complex and secure than Enigma. A machine that could never be broken. For 60 years no one knew about Lorenz or 'Tunny', or the courageous group of men who finally broke the code. Here for the first time, codebreaker the late Jerry Roberts tells how these forgotten heroes of Bletchley broke Hitler's top secret code, and how he finally got the codebreakers the recognition they deserve. AUTHOR: Jerry Roberts MBE was the last surviving Bletchley Park codebreaker until his death in 2014. A talented linguist and recruited as a German speaker, he worked at Bletchley Park on the Lorenz machine for four years and was part of a small but dedicated team of codebreakers that included Tommy Flowers and Bill Tuttle. SELLING POINTS: ? The inside story of the Bletchley Park codebreakers who broke the Lorenz machine Told by Jerry Roberts MBE, who until his death was the last surviving Bletchley Park codebreaker ? Lorenz or 'Tunny' machine was used to convey messages between Hitler and his top generals and field marshals during WWII ? More complex and secure even than Enigma, this was the machine that could never be broken ? Lorenz's existence was kept secret for 60 years and it has never been written about in a book before 16 b/w photos