The Six Unsolved Ciphers  (English, Paperback, Belfield Richard)

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 buried treasure awaits you somewhere in Buford County, Virginia. See how one man directly challenged the CIA by erecting an encoded sculpture called KRYPTOS at the agency's Langley headquarters--only to prove that his genius could resist the world's best code-breakers and most powerful decryption software. Plus three more captivating ciphers . . .