For thousands of years people have used codes and ciphers to keep secrets from people who will do anything to learn them. How did secret messages cause a queen to lose her head? How have lost languages finally been understood? How did one little-known language help a country win a war? Read this book and find out.
I really like this book. This book tells us many secret codes that were used a long time ago and how to interpret them. And I learned that the secret codes were necessary for people who were fighting in the war. I would recommend this book to people who really like to do many activities.