The Unbreakable Code
Jennifer Chambliss Bertman
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Explorer Academy: The Star...
Trudi Trueit
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En Busca de la Entrada...
Rosario Ana
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The Twyford Code
Janice Hallett
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Explorer Academy: The Tiger's...
Trudi Trueit
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The Eye of God
James Rollins
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The Einstein Enigma
José Rodrigues Dos Santos
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The Last Twelve Miles
Erika Robuck
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Cryptos Conundrum
Chase Brandon
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The Devil Colony: A SIGMA...
James Rollins
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The Cryptos Conundrum
Chase Brandon
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The Hunt for the Missing Spy
Penny Warner
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The Atlantis Code
Charles Brokaw
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The Bridge to Never Land
Dr. Dave Barry,
Ridley Pearson
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Code Breakers: Volume 2
Sally Rippin
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Storm Warning (the 39 Clues,...
Mrs. Linda Sue Park
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The Doomsday Key: A SIGMA...
James Rollins
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Every Wicked Man
Steven James
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The Secret of the Skeleton Key
Penny Warner
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Ruby Redfort Take Your Last...
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Salem's Cipher
Jess Lourey
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The Devil Colony: A SIGMA...
James Rollins
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El Laberinto de Huesos
Rick Riordan
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Ruby Redfort Catch Your Death
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The Code Busters Club, Case ...
Penny Warner
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