In "The Emerald City of Oz", when Ozma goes to consult Glinda about the security of her Ozian citizens, the Sorceress seals off all of Oz from the Great Outside World, making Oz invisible to the eyes of mortals flying overhead in airplanes and such. However, unlike Ozma, Glinda is willing to ignore strife and oppression in remote corners of Oz like Jinxland and the Skeezer territory as long as it does not threaten the Emerald City or innocent outsiders. The readers are left with the sense that Glinda is experienced and seasoned to the point of knowing that there is not a magic cure for everything, and that certain things cannot be changed or perhaps should not be changed for better or for worse.