Did you know that Harriet Tubman was a spy for Abraham Lincoln during the Civil War? Or that Robert Smalls used secret hand signals to escape slavery on a Confederate ship? Mary Touvestre risked everything to bring plans for the first ironclad warship to the Union. Find out about heroes who spied, fought, and sailed to freedom in this book of amazing true stories!

Discover the thrilling side of history starting with how spies helped during the Revolutionary War in this fact-tastic, nonfiction Level 3 Ready-to-Read, part of a new series about the secrets of American History!