A Library of The Original Collection of Magic Tree House 1-28 Complete Books Set,Magic Tree House Boxed Set, Books 1-15: Mary Pope Osborne: 9780375979774: Amazon.com: Books,Magic Tree House Series Books 1 - 16 Collection Set by Mary Pope Osborne,Magic Tree House Boxed Set, Books 1-15: Mary Pope Osborne: 9780375979774: Amazon.com: Books,[Magic Tree House Boxed Set, Books 1-28] [By: Osborne, Mary Pope] [September, 2008],