L. Frank Baum

“ There can be no doubt that the Shoemaker is a powerful Magician, and his powers have been increased a hundredfold since he secured the Great Book of Records, the Magic Picture, all of Glinda's recipes for sorcery, and my own black bag, which was full of tools of wizardry. The man who could rob us of those things and the man with all their powers at his command is one who may prove somewhat difficult to conquer, therefore we should plan our actions well before we venture too near to his castle. ”

“ They broke camp and were about to start on the journey to Ugu's castle when they discovered that Button-Bright was lost again. The girls and the Wizard shouted his name, and the Lion roared and the Donkey brayed and the Frogman croaked and the Big Lavender Bear growled (to the envy of Toto, who couldn't growl but barked his loudest) , yet none of them could make Button-Bright hear. So after vainly searching for the boy a full hour, they formed a procession and proceeded in the direction of the wicker castle of Ugu the Shoemaker.
"Button-Bright's always getting lost," said Dorothy. ”

“ What is Ugu, and what is a magician? Ugu is a renegade shoemaker, and a magician is an ordinary man who, having learned how to do magical tricks, considers himself above his fellows. In this case, the Shoemaker has been naughty enough to steal a lot of magical tools and things that did not belong to him, and he is more wicked to steal than to be a magician. Yet with all the arts at his command, Ugu is still a man, and surely there are ways in which a man may be conquered. ”