Warriors: A nonfiction companion to Magic Tree House #31: Warriors in Winter (Magic Tree House: Fact Trekker Book 40) (English Edition)

Space: A Nonfiction Companion to Magic Tree House #8: Midnight on the Moon (Magic Tree House: Fact Trekker Book 6) (English Edition)

China: Land of the Emperor's Great Wall: A Nonfiction Companion to Magic Tree House #14: Day of the Dragon King (Magic Tree House: Fact Trekker Book 31) (English Edition)

Wild West: A Nonfiction Companion to Magic Tree House #10: Ghost Town at Sundown (Magic Tree House: Fact Trekker Book 38) (English Edition)

Pilgrims: A Nonfiction Companion to Magic Tree House #27: Thanksgiving on Thursday (Magic Tree House: Fact Trekker Book 13) (English Edition)

Soccer: A Nonfiction Companion to Magic Tree House Merlin Mission #24: Soccer on Sunday (Magic Tree House: Fact Trekker Book 29) (English Edition)

Titanic: A Nonfiction Companion to Magic Tree House #17: Tonight on the Titanic (Magic Tree House: Fact Tracker Book 7) (English Edition)

Dinosaurs: A Nonfiction Companion to Magic Tree House #1: Dinosaurs Before Dark (Magic Tree House: Fact Trekker) (English Edition)

Ninjas and Samurai: A Nonfiction Companion to Magic Tree House #5: Night of the Ninjas (Magic Tree House: Fact Trekker Book 30) (English Edition)

World War II: A Nonfiction Companion to Magic Tree House Super Edition #1: World at War, 1944 (Magic Tree House Fact Tracker)

Sabertooths and the Ice Age: A Nonfiction Companion to Magic Tree House #7: Sunset of the Sabertooth (Magic Tree House: Fact Trekker Book 12) (English Edition)

Benjamin Franklin: A nonfiction companion to Magic Tree House #32: To the Future, Ben Franklin! (Magic Tree House Fact Tracker)

Space: A Nonfiction Companion to Magic Tree House #8: Midnight on the Moon SPACE （Magic Tree House (R) Fact Tracker） [ Mary Pope Osborne ]