Addison Cooke and the...
Jonathan W Stokes
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Hidden in Plain View: A...
Jacqueline Tobin,
Raymond G Dobard
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How I Became a Spy: A Mystery...
Deborah Hopkinson
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The Doomsday Key: A SIGMA...
James Rollins
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Codes, Ciphers and Secret...
Martin Gardner
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The Cryptos Conundrum
Chase Brandon
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The Eye of God
James Rollins
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X, Y and Z: The Real Story of...
Dermot Turing,
Arkady Rzegocki (Foreword by)
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The Lovecraft Code
Peter Levenda
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Mysterious Messages: A...
Gary Blackwood
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Mr. Summerling's Secret Code ...
Dori Hillestad Butler,
Tim Budgen (Illustrator)
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The Hunt for the Missing Spy
Penny Warner
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The Mysterious Code
Kathryn Kenny
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The Mathematics of Secrets:...
Joshua Holden
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Dunwich
Peter Levenda
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Eddie Red: Undercover: Doom...
Marcia Wells,
Marcos Calo (Illustrator)
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The Secret Cipher
Whitaker Ringwald
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Code Cracking for Kids:...
Jean Daigneau
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Enigma: The Battle for the...
Hugh Sebag-Montefiore
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Enigma Traitors: The Struggle...
Dermot Turing
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A Desperate Fortune
Susanna Kearsley
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Unsolved!: The History and...
Craig P Bauer
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Elementary Cryptanalysis: A...
Abraham Sinkov
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The Cipher
John C Ford
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