The Lost Princess of Oz

Princess Ozma, ruler of the Land of Oz, has gone missing. With no magical means of returning her, Dorothy and her friends must travel into unknown lands and confront strange new challenges in order to find her. However, Ozma could be anywhere, and only a very powerful sorcerer could be responsible: but who?
Book 11 of the 15 book series by L. Frank Baum. Journey through the magical world of Oz with Dorothy and friends with these beloved timeless classics.

Lyman Frank Baum was an American author best known for his children's books. Born in New York state, he was involved in writing and theatre all his life.