Turn back the clock with History Comics! In this volume, learn about spy craft and espionage during World War I.

Don't believe what you've seen in movies-being a spy isn't all about fighting ninjas and drinking martinis. The job of a spy is to gather information, communicate secretly, and wield influence. A spy might be tasked with taking pictures, making ciphers, or hiding notes in their shoes. In this book, you'll see how everyday people-nurses, sailors, even children-used espionage to help end World War I.