They weren't superheroes. They didn't have capes or superpowers. But they did have fake names, clever disguises, invisible ink, and nerves of steel. During World War II, spies-some as young as teenagers-risked everything to pass secret messages, outsmart the enemy, and change the course of history. This exciting nonfiction book brings those daring stories to life for readers ages 7 to 12. From double agents who fooled the Nazis to kids who carried coded letters on their bikes, every page reveals a real-life act of courage, cleverness, and creativity. Readers will discover how spies used lemon juice to hide messages, how fake armies helped launch D-Day, and how brave women posed as maids, nurses, and even shopkeepers to gather secrets. With gripping storytelling, hands-on spy activities, and kid-friendly explanations of key terms like "cipher" and "sabotage," this book turns history into an unforgettable adventure. Perfect for curious minds, reluctant readers, or any kid who loves mystery, danger, and true stories of bravery, this is a look at World War II like you've never seen before-through the eyes of the secret agents who helped win it.