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The Cryptogram Challenge: Over 150 Codes to Crack and Ciphers to Break by Robert Allen

The Cryptogram Challenge: Over 150 Codes to Crack and Ciphers to Break

Robert Allen

192 pages • first pub 2005 (editions)

adventurous informative mysterious medium-paced
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The Cryptogram Challenge by Robert Allen
The Cryptogram Challenge
—
Robert Allen

The Cryptogram Challenge

Robert Allen

192 pages • first pub 2005 (editions)

adventurous informative mysterious medium-paced