Enigma: The Battle for the Code

List of Illustrations. Acknowledgements. Introduction. Prologue. The Betrayal -- Belgium and Germany, 1931. The Leak -- Poland, Belgium and Germany, 1929--38. An Inspired Guess -- Poland, 1932. A Terrible Mistake -- Poland, 1933--9. Flight -- Germany, Poland and England, 1939--40. The First Capture -- Scotland, 1940. Mission Impossible -- Norway and Bletchley Park, 1940. Keeping the Enigma Secret -- France and Bletchley Park, May--September 1940. Deadlock -- Bletchley Park, August--October, 1940. The Italian Affair -- Bletchley Park and the Mediterranean, March 1941. The End of the Beginning -- Norway, March 1941. Breakthrough -- North of Iceland, May 1941. Operation Primrose -- The Atlantic, May 1941. The Knock--Out Blow -- North of Iceland, June 1941. Suspicion -- Bletchley Park, the Atlantic and Berlin, May--October 1941. A Two--Edged Sword -- The Atlantic and the Cape Verde Islands, September 1941. Living Dangerously -- The South Atlantic and Norway, November 1941--March 1942. The Hunt for the Bigram Tables -- Bletchley Park and Norway, December 1941. Black Out -- The Barents Sea, Bletchley Park and the Admiralty, February--July 1942. Breaking the Deadlock -- The Mediterranean and Bletchley Park, October--December 1942. The Turning Point -- South of France, the Mediterranean and the Atlantic, November 1942--September 1943. Trapped -- South of France, November 1942--March 1943. The Arrest -- Berlin, March--September 1943. Sinking the Scharnhorst -- The Barents Sea, December 1943. Operation Covered -- Paris, the Indian Ocean and the Atlantic, August 1943--March 1944. The Last Hiccough -- Germany, France and the South Atlantic, March--June 1944. Epilogue -- Where did they Go? Chronology. Glossary. Appendix 1: Polish Codebreaking Techniques. Appendix 2: The Bombe. Appendix 3: Naval Enigma. Appendix 4: Cillis. Appendix 5: Rodding. Appendix 6: Naval Enigma Offizier. Notes. Bibliography. Index.