Discover the thrilling side of the history of World War I in this fact-tastic, nonfiction Level 3 Ready-to-Read, part of a new series about the secrets of American History! Do you know about the adventures of Eugene Bullard, the first African-American fighter pilot, who fought in World War I? Did you know that, in the same war, America used a kind of camouflage called Dazzle Painting that made ships look like Easter eggs? Or that Americans Indians sent secret messages as code talkers in the Choctaw Telephone Squad? Find out in this book of amazing true stories! Secrets of American History is an action-packed nonfiction Level 3 Ready-to-Read series that lets beginning readers in on a little secret: history is full of surprises! Want to know what invisible ink has to do with the American Revolution? Or why shark repellant and inflatable army tanks were used in World War II? Find out in this fact-filled series of fascinating true tales, wild adventures, and spy missions, and discover the secret side of American history!