A FAST PACED THRILLER PACKED WITH HISTORYWhen the Polish Cypher Bureau discover that the Germans are using a new type of code that they are unable to solve, they decide to recruit mathematics students in a ground breaking new approach to code breaking. Marian Rejewski is one of the student recommended to the Bureau and along with other brilliant students he attends a secret course in code breaking.Having being supplied with a commercial enigma machine and a set of user manuals, Marian sets out alone to break the code. His work is carried out in the utmost secrecy but with the outbreak of war with Germany increasingly likely- time is running out...........