Jack and Annie are ready for their next fantasy adventure in the bestselling middle-grade series—the Magic Tree House!<br> <br> Have you ever met a real live ninja?<br><br>Jack and Annie do when the Magic Tree House whisks them back to ancient Japan, where they find themselves in the cave of a ninja master. Will they learn the secrets of the ninja? Or will the evil samurai warriors get them first?<br> <br> Visit the Magic Tree House website!<br> MagicTreeHouse.com