In RINKITINK IN OZ, Prince Inga of Pingaree and King Rinkitink and their companions have adventures that lead to the land of the Nomes and eventually to Oz itself.
Lyman Frank Baum (1856-1919) was an American writer of children's books, including THE WONDERFUL WIZARD OF OZ and thirteen sequels. In addition to his Oz books, Baum wrote dozens of other books and short stories, often set in mythical lands.