What makes an American legend? Find out in these fascinating stories of three of our national treasures, including Johnny Appleseed, whose apple trees bore the fruit that fed a nation of pioneers; Sacagawea, the Native American woman who bravely guided Lewis and Clark on their westward journey; and John Muir, a valiant protector of the West's natural wonders and founder of the Sierra Club. Though these narratives stay as true to the historical record as possible, most conversations, details, and some events have been imagined to keep things interesting. You can explain to your child the difference between fiction and nonfiction and talk about where the two sometimes collide.