The Emerald City is the capital city of the fictional Land of Oz in L. Frank Baum's Oz books, first described in The Wonderful Wizard of Oz (1900).

King Pastoria is a fictional character mentioned in the Oz books by American author L. Frank Baum. He was the rightful ruler and King of the undiscovered Land of Oz, but was mysteriously removed from his position when the Wizard of Oz unexpectedly came to the country and took the throne, proclaiming himself as the new dominant ruler of Oz. Shortly after, Pastoria's only child and heir, Princess Ozma, suddenly vanished, leaving not a single clue of her whereabouts.