Most intriguingly, in "The Emerald City of Oz", when the Nome King considers invading Oz, he is told by a minion, General Guph, that Glinda the Good's castle is located "at the North of the Emerald City," when it has been established that Glinda rules the South, while another Witch (the one who welcomed Dorothy to Oz, and was retroactively named Tattypoo) reigned in the North. Guph may have gotten his facts muddled, as none of the Gnomes had been to Oz at that time, but it portends the depiction of Glinda as the Good Witch of the North rather than the South in the 1939 MGM film (which is the most widely known version of Oz to date).