Land of Oz Patchwork Girl of Oz", Dorothy specifies that he cannot speak because he is not a fairy dog. However, in "Ozma of Oz", the chicken Billina acquires speech merely by being swept to the lands near Oz, and in "Dorothy and the Wizard in Oz", the same is true of the kitten Eureka and the cab horse Jim when reaching the land of Mangaboos, a similarly magical land. In "Tik-Tok of Oz", Baum restored the continuity: Toto can speak, and always could, but never bothered to, because it was unnecessary. An additional inconsistency is introduced with "Tik-Tok of Oz": Hank the
Political interpretations of The Wonderful Wizard of Oz people (and even the Good Witches) into believing he is benevolent, wise, and powerful when really he is a selfish, evil humbug. He sends Dorothy into severe danger hoping she will rid him of his enemy the Wicked Witch of the West. He is powerless and, as he admits to Dorothy, "I'm a very bad Wizard". Hugh Rockoff suggested in 1990 that the novel was an allegory about the demonetization of silver in 1873, whereby “the cyclone that carried Dorothy to the Land of Oz represents the economic and political upheaval, the yellow brick road stands for the gold standard,