In Night of the Ninjas, the fifth book in Mary Pope Osborne's beloved Magic Tree House series, siblings Jack and Annie discover that Morgan le Fay has been placed under a terrible spell. To free her, they must find four special objects. Their quest begins in ancient Japan, where mysterious ninjas lurk in the shadows. When fearsome samurai warriors begin hunting them, Jack and Annie must use cleverness and courage to escape. With guidance from a wise ninja master, they learn the secrets of moving like nature itself—silent as rocks, flowing as water. Will they survive and find the first magical object?
