Jack and Annie are ready for their next adventure in the bestselling middle-grade series-the Magic Tree House! 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? Visit the Magic Tree House website! MagicTreeHouse.com