Magic Tree House #27: Thanksgiving on Thursday: 9780375906152: Osborne, Mary Pope, Murdocca, Sal: Books - Amazon.com,Magic Tree House Boxed Set, Books 1-15: Mary Pope Osborne: 9780375979774: Amazon.com: Books,Magic Tree House Books 17-20 Boxed Set: The Mystery of the Enchanted Dog: 9780375858116: Osborne, Mary Pope, Murdocca, Sal: Books - Amazon.com,Magic Tree House - Penguin Random House,Magic Tree House Boxed Set Books 16-29 Mary Pope Osborne for sale online | eBay