Mary Pope Osborne is the author of all the Magic Tree House books, as well as American Tall Tales and New York’s Bravest for Knopf. The author lives in Goshen, CT.
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Books 1-8 of the New York Times bestselling Magic Tree House series plus an interview with Mary Pope Osborne! Meet Jack and Annie! Jack and his younger sister, Annie, are just regular kids. But when they discover a tree house in the woods,... SEE MORE