Each short chapter features a brief historical background of the character and code, as well as five cryptograms—using authentic alphabets—to give your brain a fun workout. Unravel the messages faster as you go along, and watch your rank increase from “shrewd detective” to “master cryptographer!"
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Each short chapter features a brief historical background of the character and code, as well as five cryptograms—using authentic alphabets—to give your brain a fun workout. Unravel the messages faster as you go along, and watch your rank increase from “shrewd detective” to “master cryptographer!"
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