L. Frank Baum,
The Lost Princess of Oz — Chapter 14…
(1917)
“ Moreover, if you journey far enough east and cross the river for a second time, you will come to the Emerald City, where there is much magic and sorcery. The Emerald City is ruled by a dear little girl called Ozma, who also rules the Emperor of the Winkies and all the Land of Oz. So, as Ozma is a fairy, she may be able to tell you just who has taken your precious dishpan. Provided, of course, you do not find it before you reach her.""This seems to be to be excellent advice," said the Frogman, and Cayke agreed with him. ”
