When British Intelligence learns of a German U-Boat anchored off the coast of Sweden, in neutral waters, they enlist the help of an American Naval code-breaking officer to go undercover as a Nazi. Their mission: sneak aboard the German sub and liberate the Enigma decoding machine.
- ISBN10 1406261912
- ISBN13 9781406261912
- Publish Date 11 April 2013 (first published 1 January 2012)
- Publish Status Out of Print
- Out of Print 4 March 2021
- Publish Country GB
- Publisher Pearson Education Limited
- Imprint Raintree Publishers
- Format Paperback
- Pages 88
- Language English