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Writing secret codes and sending hidden messages

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Gyles BrandrethGyles Daubeney Brandreth1 editions

Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.

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2 credited authorsSearch language english

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  • Gyles Brandreth

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  • Gyles Daubeney Brandreth

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