MARY POPE OSBORNE and NATALIE POPE BOYCE are sisters who grew up on army posts all over the world. Mary is the author of more than 50 acclaimed books for children. Natalie has worked as a children's librarian and as a teacher of English and E.S.L.
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The #1 bestselling Magic Tree House series is ready to whisk you away through time with Jack and Annie--this time to the Yosemite National Park! The magic tree house whisks Jack and Annie to the Yosemite National Park in 1903. They are surprised to joi... SEE MORE