Ozma of Oz: Author of The Wizard of Oz

While traveling to Australia with her Uncle Henry, Dorothy is swept overboard with a hen named Billina. They land in Ev, a country across the desert from Oz, where they encounter the wheelers and make a new friend, the mechanical man Tik-Tok. They meet Princess Ozma, who is in Ev to attempt to save Ev's royal family from the evil Nome King, and finally return to Oz.