Magic Tree House Fact Tracker Books by Mary Pope Osborne

- Collection of Magic Tree House Fact Tracker books available. - Ideal for young readers interested in history and science. - Titles include: Ninjas and Samurai, Vikings, Penguins and Antarctica, Ancient Greece and the Olympics, Baseball, Saber-tooths and the Ice Age, Polar Bears and the Arctic, Sea Monsters, American Revolution, Abraham Lincoln, World War II, Dogsledding and Extreme Sports, Twisters and Other Terrible Storms, Dinosaurs, Tsunamis and Other Natural Disasters, Horse Heroes, and Dog Heroes.