- Availability: Out of Stock
- Suggested Age: 8+
This set of wipe-clean activity cards are perfect for aspiring cryptographers! The 50 cards explore Semaphore, Morse code, Egyptian hieroglyphics as well as traditional number replacement and alphabet switching. Each card contains information about the code, an explanation of how it works and a fun coding activity to complete. The pack includes a dry wipe pen to write on the cards as you attempt to crack the codes!