The Magic Tree House Research Guide 18-Book Set (American Revolution, Ancient Greece and the Olympics, Ancient Rome and Pompeii, Dinosaurs, Dolphins and Sharks, Knights and Castles, Mummies and Pyramids, Penguins and Antarctica, Pilgrims, Pirates, Polar Bears and the Arctic, Rain Forests, Sabertooths and the Ice Age, Sea Monsters, Space, Titanic, Tsunamis and Other Natural Disasters, and Twisters and Other Terrible Storms)

Magic Tree House Merlin Missions #1-25 Boxed Set (Magic Tree House (R) Merlin Mission)

Magic Tree House Boxed Set, Books 1-28

China: Land of the Emperor's Great Wall: A Nonfiction Companion to Magic Tree House #14: Day of the Dragon King (Magic Tree House (R) Fact Tracker)

Hurricane Heroes in Texas (Magic Tree House (R))

Warriors in Winter (Magic Tree House (R))

Ninjas and Samurai: A Nonfiction Companion to Magic Tree House #5: Night of the Ninjas (Magic Tree House (R) Fact Tracker)

A Big Day for Baseball (Magic Tree House (R))

World at War, 1944 (Magic Tree House Super Edition)

Magic Tree House Incredible Fact Book: Our Favorite Facts about Animals, Nature, History, and More Cool Stuff! (Magic Tree House (R))

Magic Tree House Fact Tracker 8 Book Set: Ghosts / Dolphins & Sharks / Twisters & Storms / Titanic / Ancient Rome & Pompeii / Sabertooths & Ice Age / American Revolution / Ancient Greece & Olympics