Clear instructions for sending secret messages, cryptic treasure hunts, learning about fingerprinted words, three-letter patterns, much more.
Games with Codes and Ciphers
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Book Details
Author(s)Norvin Pallas
PublisherDover Publications
ISBN / ASIN0486282090
ISBN-139780486282091
Sales Rank5,577,797
MarketplaceUnited States 🇺🇸