In 1940, Ralph Bennett, a Cambridge historian, was drafted into Hut 3 at Bletchley Park where secret German army and navy signals were decoded, translated and sent to commanders in the field. Thirty years after the end of the War, when the Ultra secret was revealed, Bennett re-read thousands of messages that he himself had translated, a rare experience for any historian. He became a prolific author of books and essays on Bletchley's role in the Second World War.

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• List of MapsPreface to New EditionAcknowledgementsIntroduction1. 1939: Thick Darkness Brooding2. 1940-1941: First Rays of Light3. 1941-1943: A Brighter Prospect in the Mediterranean4. 1939-1945: Ten-Tenths Cloud Cover: Intelligence and Bomber Command5. 1941-1945: Shadow and Sunlight Over the Atlantic6. 1943-1945: Clear Skies in Italy, Storm Over the Balkans7. 1944-1945: Set Fair in the West, then Autumn ShowersAppendix I: Enigma and UltraAppendix II: The Controversy Over CreteAppendix III: Harris and IntelligenceAppendix IV: Signals to Command AbroadAppendix VI: How It Was DoneAppendix VII: Illustrations of UltraReference NotesSelect BibliographyMain Events 1939-1945AbbreviationsIndex

In 1940, Ralph Bennett, a Cambridge historian, was drafted into Hut 3 at Bletchley Park where secret German army and navy signals were decoded, translated and sent to commanders in the field. Thirty years after the end of the War, when the Ultra secret was revealed, Bennett re-read thousands of messages that he himself had translated, a rare experience for any historian. He became a prolific author of books and essays on Bletchley's role in the Second World War.

Select Guide Rating

• List of MapsPreface to New EditionAcknowledgementsIntroduction1. 1939: Thick Darkness Brooding2. 1940-1941: First Rays of Light3. 1941-1943: A Brighter Prospect in the Mediterranean4. 1939-1945: Ten-Tenths Cloud Cover: Intelligence and Bomber Command5. 1941-1945: Shadow and Sunlight Over the Atlantic6. 1943-1945: Clear Skies in Italy, Storm Over the Balkans7. 1944-1945: Set Fair in the West, then Autumn ShowersAppendix I: Enigma and UltraAppendix II: The Controversy Over CreteAppendix III: Harris and IntelligenceAppendix IV: Signals to Command AbroadAppendix VI: How It Was DoneAppendix VII: Illustrations of UltraReference NotesSelect BibliographyMain Events 1939-1945AbbreviationsIndex

In 1940, Ralph Bennett, a Cambridge historian, was drafted into Hut 3 at Bletchley Park where secret German army and navy signals were decoded, translated and sent to commanders in the field. Thirty years after the end of the War, when the Ultra secret was revealed, Bennett re-read thousands of messages that he himself had translated, a rare experience for any historian. He became a prolific author of books and essays on Bletchley's role in the Second World War.

Select Guide Rating

• List of MapsPreface to New EditionAcknowledgementsIntroduction1. 1939: Thick Darkness Brooding2. 1940-1941: First Rays of Light3. 1941-1943: A Brighter Prospect in the Mediterranean4. 1939-1945: Ten-Tenths Cloud Cover: Intelligence and Bomber Command5. 1941-1945: Shadow and Sunlight Over the Atlantic6. 1943-1945: Clear Skies in Italy, Storm Over the Balkans7. 1944-1945: Set Fair in the West, then Autumn ShowersAppendix I: Enigma and UltraAppendix II: The Controversy Over CreteAppendix III: Harris and IntelligenceAppendix IV: Signals to Command AbroadAppendix VI: How It Was DoneAppendix VII: Illustrations of UltraReference NotesSelect BibliographyMain Events 1939-1945AbbreviationsIndex