Magic Tree House 50 Hurry Up Houdini Author:Mary Pope Osborne Magic Tree House #50 features Jack and Annie and legendary magician, Harry Houdini! If kids get hooked on Magic Tree House, they're hooked on reading! The Magic Tree House books, with their fiction and nonfiction books, are perfect for parents and teachers just starting to get into the "Core Curriculum." With a blend of magic, adventure, history... more », science, danger, and cuteness, the book topics range from kid pleasers (pirates, the Titanic, pandas) to curriculum perfect (rain forest, American Revolution, Abraham Lincoln) to seasonal shoe-ins (Halloween, Christmas, Thanksgiving). There is truly something for everyone here.« less