41. She said she would if he helped her get the captains code book and let him escape. 42. You need a code book .) 43. No luck on Saipan . 1st Marines did find the code books in the catacombs under Shuri Castle. 44. A duel ensues in which Sharpe kills Leroux and then recovers Leroux's Klingenthal sabre and the coded book . 45. It is celebrated in " The Code Book " ( Doubleday, 1999 ), Simon Singh's history of cryptography. 46. That led to states passing anti-telegraph tapping laws, but businessmen still carried code books to protect their communications. 47. Perhaps it got their code books ? 48. The excitement of " The Code Book " is not just in how it makes difficult concepts comprehensible. 49. The 1979 / 80 code book shows South Ockendon as the first exchange to change code and subscriber numbers. 50. Fearing they would be captured, the French destroyed some of their equipment, including military code books and short-wave radios.