Not specified · Malta Lifestyle
Over 50 Secret Codes
€8.40
Out of stock
Prices last checked 5 Nov 2026, 05:17 UTC. Delivery and checkout conditions apply.
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Merlin Library
Out of stock · Checked 5 Nov 2026, 05:17 UTC
About this product
Children love to learn secret codes and write encrypted messages and this book will teach them everything they need to know, including Semaphore and Morse code, “Grid code” used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.