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Grade Level: Because these letters are sourced from the past
Give one or two months as a small thank-you or get-well-soon gift or an ongoing membership as a grand birthday or Christmas surprise
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The Codebreaking Club (Six Months) Choose Your Start Month:June Grade Level: Because these letters"Like Sudoku For Spies" Think you'd make a good spy? Join the Codebreaking Club and put your cryptanalyst skills to the test with one real secret message from the past each month. Never solved a cipher before? With the Codebreaking Club, learning to solve ciphers is easy. Every Codebreaking Club envelope includes step by step instructions for deciphering your latest message. You'll be cracking codes in no time! Each Codebreaking Club envelope
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