World War II
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Amazing Animals! Magic Tree House Fact Tracker Collection
Mary Pope Osborne, Natalie Pope Boyce & Sal Murdocca
Magic Tree House Fact Tracker Graphic Novel: Dinosaurs
Mary Pope Osborne, Jenny Laird & Jomike Tejido
Dinosaurs
Mary Pope Osborne, Will Osborne & Sal Murdocca
Knights and Castles
Mary Pope Osborne, Will Osborne & Sal Murdocca
Mummies and Pyramids
Mary Pope Osborne, Will Osborne & Sal Murdocca
Pirates
Mary Pope Osborne, Will Osborne & Sal Murdocca
Ninjas and Samurai
Mary Pope Osborne, Natalie Pope Boyce & Sal Murdocca
Rain Forests
Mary Pope Osborne, Will Osborne & Sal Murdocca
Sabertooths and the Ice Age
Mary Pope Osborne, Natalie Pope Boyce & Sal Murdocca