Magic Tree House: A Ghost Tale for Mr. Dickens JR. is an adaptation of book #44 of Mary Pope Osborne’s award-winning fantasy adventure books from the Magic Tree House book series, which has sold more than 100 million copies and is available in more than 100 countries around the world. Jack and Annie’s tree house takes them to Victorian London in this holiday-themed story, where they learn the importance of charity and kindness through their friendship with legendary author, Charles Dickens.