Ozma of Oz (1907) was the third in the Oz series of books by L. Frank Baum and the first that is set largely outside the Land of Oz.  Dorothy and her Uncle Henry are en route to Australia when a violent storm washes Dorothy overboard in a crate with Billina, a yellow hen. When they wash ashore, she senses they are in some sort of “fairy country”, because Billina can talk and they pick their lunch from a “lunch pail tree”.  They meet the raucous “Wheelers”, creatures with wheels in place of hands and feet, and run off to find a key beside a door carved into the side of a rocky mountain. Venturing inside, they meet Tik-Tok, a mechanical man with three clockwork motors for thought, motion, and speech. They activate him with the key and learn they are in the Land of Ev, controlled by the Nome King, who has captured the royal family and turned them into ornaments displayed throughout his palace.  Tik-Tok escorts them to the home of Princess Langwidere. Ozma appears on a magic carpet, courtesy of Glinda, with her chums the Tin Woodsman, the Scarecrow, and the Cowardly Lion, and they set off to the underground kingdom of the Nomes.  They undergo a challenge from the Nome King and are on the brink of disaster when Billina saves the day, rescuing her companions and the royal family. They return to a victory celebration in the Emerald City.

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