cipher

  1. The white cipher
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    Henry Leverage
  2. The archæology of the cuneiform inscriptions
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  3. The Treasure Trail
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    Frank Lillie Pollock
  4. Le scarabée d'or

    Edgar Allan Poe

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    Edgar Allan Poe
  5. The Weapon From Eternity
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    Dwight V. Swain
  6. Guide to Fortune-Telling by Dreams
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  7. Walker of the Secret Service
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    Melville Davisson Post
  8. Pussy and Her Language
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    Marvin R. Clark
  9. A Primer of Mayan Hieroglyphics
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  10. Muinais-tiedustuksia Pohjanperiltä

    J. W. Calamnius

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  11. The Mystery Boys and Captain Kidd's Message
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  12. Aenigmata Fennica: Suomalaiset Arwotuxet Wastauksien kansa

    Yazar Bilinmiyor

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  13. Penny Allen and the Mystery of the Hidden Treasure
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  14. Manual for the Solution of Military Ciphers

    Parker Hitt

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  15. The Rosetta Stone
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    Sir E. A. Wallis Budge
  16. His Master's Voice
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    Randall Garrett
  17. The Robinson Telegraphic Cipher
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    Stephen L. Robinson
  18. The Quest for a Lost Race
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    Thomas Edward Pickett
  19. The Phantom Treasure
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    Harriet Pyne Grove
  20. The Book of Daniel Unlocked
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    W. S. Auchincloss
  21. Egitto
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    Manfredo Cagni
  22. Finding the Lost Treasure
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    Helen M. Persons
  23. Notes and Queries, Number 169, January 22, 1853
A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc.

    Various

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  24. La Cryptographie, ou, l'art d'écrire en chiffres

    P. L. Jacob

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  25. The Secret Mark
An Adventure Story for Girls
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