Question: Princess Ozma lives in the fictional City of Thi in which L. Frank Baum book?
Sentence (from "Land of Ev"): The Road to Oz" states that Ev is to the north of the Land of Oz, and in "Ozma of Oz", Princess Ozma of Oz and her procession enter the Munchkin Country and meet the King of the Munchkins upon leaving the palace at Evna, the capital city.
Relevant evidence: No