The Emperor's Codes

The Emperor's Codes moves across the world from Bletchley Park to Pearl Harbor; from Singapore to Colombo; and from Mombasa to Melbourne, describing the extraordinary exploits of the British codebreakers during the Second World War -- all fascinating, astonishing and amazing.
Where previous books have all emphasized the roles played by the American codebreakers this is the first full account of the critical role played by Bletchley Park and it's worldwide outposts. Using the memories of those at the forefront of the battle, Michael Smith reveals a gripping story.