"This is a fascinating story and one kids and adults will find interesting." -- The Write Stuff

"If you have a history or spy buff in your life, hand this book to him or her." -- Prose and Kahn

"I absolutely loved this book. If you like WWII history or little known history, you should check this book out!" -- Rattle the Pages

"It's literally an interactive experience that even my middle school kids thoroughly enjoyed. In fact, they've both voiced their anticipation for the next installment." -- Kidliterati

"This series is a fun way to introduce readers to codes and codebreaking without making it too difficult. Even readers who have cracked a few codes in their time will enjoy one more opportunity to spin a cipher wheel and work out a message. Maybe they'll even be inspired to create their own!" -- Mad About MG History

"Exciting, entertaining, and educational...this unique and clever book is all these things! Middle-grade readers will be captivated by the fascinating history of the Ghost Army and will have a blast deciphering puzzles and clues using the tools provided within the book." -- Word Spelunker

"There are a lot of tensions in the book --- between art as passion and art as a war tactic, excitement over the Germans aiming their guns at the Ghost Army and fear at the army's defenselessness --- which makes this book a true page-turner. This perfectly paced tale of bravery and deception is perfect for any lover of history and wannabe spy!" -- Kidsreads.com