Osborne, Mary Pope, Magic Treehouse #44, A Ghost Tale for Christmas Time
The magic tree house whisks Jack and Annie back in time to the foggy streets of Victorian London, where they must help Charles Dickens. But the famous author has everything he could possibly want. How are they supposed to help him? It’s not until Mr. Dickens rescues them from being thrown in jail that they discover his secret past and the sad memories that haunt him. Jack and Annie will need all their magic—and help from three ghosts!—to save the great writer.