The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Catch the wave! That's what Jack and Annie do when the Magic Tree House whisks them back to a Hawaiian island of long ago. They learn how to surf and have a great time--until strange things start happening. Jack and Annie soon discover the cause: A tidal wave is headed their way! Can they help save their new friends in time? Did you know that there's a Magic Tree House book for every kid? Magic Tree House: Adventures with Jack and Annie, perfect for readers who are just beginning chapter books Merlin Missions: More challenging adventures for the experienced reader Super Edition: A longer and more dangerous adventure Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures