by National Geographic Kids
I loved the way the puzzles and codes are presented as part of an adventure, leading the reader through doorways to various parts of the Academy. Each code that you break gives you a clue to another place in the Academy that you need to go to find the next clue, and there are detours and hazards along the way.
Be sure to read this book with a notepad and pencil handy, because you’ll need to write down the answers to your codebreaking. There are places to write the answers IN the book, but I hate to mark up such a gorgeous book!
There are codes and puzzles with hieroglyphics, NATO alphabet, pig pen ciphers, flag code, scrambled letters, Caesar cipher, map codes with coordinates that detail the secret letters to spell out a message, and even a code based on constellations of stars.
This is the perfect companion to the Explorer Academy series. After having read the Explorer Academy novels, I was hankering for more puzzles and secret codes like the ones found in the stories, and this activity book definitely satisfied my curiosity about codes and cryptography.
Disclaimer: I received a copy of this book from the publishers in exchange for a free and honest review. All the opinions stated here are my own true thoughts, and are not influenced by anyone.