<P> In the sixth Oz book by Baum, The Emerald City of Oz (1910), when Uncle Henry and Aunt Em are unable to pay the mortgage on the new farmhouse built at the end of The Wonderful Wizard of Oz, Dorothy brings them to live in Oz; the plot features a tour of Oz as a marvelous, Utopian land in which they have escaped the troubles of Kansas . She becomes princess of Oz and Ozma's "companion," essentially marrying the queen . </P> <P> Dorothy is a standard character, having at least a cameo role in thirteen of the fourteen Oz books written by L. Frank Baum (while she did not appear at all in The Marvelous Land of Oz, she is mentioned several times in that story, as it was her actions in The Wonderful Wizard of Oz that led to the events in the former) and is at least a frequent figure in the nineteen that followed by author Ruth Plumly Thompson, getting at least a cameo in all her books except Captain Salt in Oz (in which neither Oz nor any of its inhabitants appear, though they are mentioned). Major subsequent appearances by Dorothy in the "Famous Forty" are in The Lost Princess of Oz, Glinda of Oz, The Royal Book of Oz, Grampa in Oz, The Lost King of Oz, The Wishing Horse of Oz, Ozoplaning with the Wizard of Oz, and The Magical Mimics in Oz . Most of the other books focus on different child protagonists, some Ozite, some from other Nonestican realms, and some from the United States, and as such, her appearances in the main series become more and more limited . In Jack Snow's The Magical Mimics in Oz (1946), Ozma places Dorothy on the throne of Oz while she is away visiting Queen Lurline's fairy band . </P> <P> The magic of Oz keeps Dorothy young . In The Lost King of Oz (1925), a Wish Way carries Dorothy to a film set in Hollywood, California . She begins to age very rapidly to her late 20s, making up for at least some of the years that have already passed . The Wish Way carries her back to Oz and restores her to her younger self, but she learns then that it would be unwise for her ever to return to the outside world . Baum never states Dorothy's age, but he does state in The Lost Princess of Oz that she is a year younger than Betsy Bobbin and a year older than Trot, whose age was specified as 10 in Ruth Plumly Thompson's The Giant Horse of Oz . </P> <P> Thompson's Oz books show a certain intolerance in Dorothy . In The Cowardly Lion of Oz, circus clown Notta Bit More arrives in the Emerald City "disguised" as a traditional witch, and Dorothy immediately starts dumping buckets water on him without provocation (although she reacted this way on the assumption that the "witch" Notta was an evil witch like her old enemy, the Wicked Witch of the West). In The Wishing Horse of Oz, she makes unsavory comments about the dark coloration Gloma and her subjects take on as a disguise, making them somewhat resemble black people . This behavior is not characteristic of Dorothy in Baum's Oz books . In The Patchwork Girl of Oz, she pushes and slaps through crowds of black Tottenhots to rescue the Scarecrow, whom they are tossing around, but this is more an example of her gumption than any sort of prejudice, as she is otherwise kind and polite to the Tottenhots, and accepts that their ways are different from those who dwell in the Emerald City . </P>

How old is dorothy from the wizard of oz
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