The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! When Jack and Annie got back from their adventure in Magic Tree House #23: Twister on Tuesday, they had lots of questions. How do tornadoes form? What kinds of tools can help predict bad storms? Where did the biggest snowfall on record happen? How fast are hurricane winds? Did you know that there’s a Magic Tree House book for every kid? Magic Tree Adventures with Jack and Annie, perfect for readers who are just beginning chapter books Merlin More challenging adventures for the experienced reader Super A longer and more dangerous adventure Fact Nonfiction companions to your favorite Magic Tree House adventures Have more fun with Jack and Annie at MagicTreeHouse.com!