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The Six Unsolved Ciphers: Inside the Mysterious Codes That Have Confounded the World's Greatest Cryptographers

The Six Unsolved Ciphers 6 FASCINATING STORIES, 6 MYSTERIOUS CODES Follow the horrific crimes of the ZODIAC and see the symbol-filled letters he sent to local San Francisco newspapers. Could breaking his code lead to the arrest of this still-at-large serial killer? Learn how the Declaration of Independence was used to decode part of the BEALE PAPERS. Find the decoder key for the rest of its cipher and a $30 million buri Full description

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