Magic Tree House: Books 5 and 6: Night of the Ninjas Afternoon on the Amazon

Books 5 and 6 of the New York Times bestselling Magic Tree House series!

Night of the Ninjas: Have you ever met a real live ninja? 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?

Afternoon on the Amazon: Vampire bats and killer ants? That's what Jack and Annie are about to run into when the Magic Tree House whisks them away to the Amazon River. It's not long before they get hopelessly lost. Will they be able to find their way back to the tree house? Or are Jack and Annie stuck forever in the rain forest?