The Wizard took time to think. Then he transformed the white pigs into three blue doves.
"Doves," said he, "are the most harmless things in the world."
But scarcely had he spoken when the doves flew at them and tried to peck out their eyes. When they endeavored to shield their eyes with their hands, two of the doves bit the Wizard's fingers and another caught the pretty pink ear of the Princess in its bill and gave it such a cruel tweak that she cried out in pain and threw her skirt over her head.
"These birds are worse than pigs, Wizard," she called to her companion. "Nothing is harmless that is animated by impudent anger or impertinent mischief. You must transform the Imps into something that is not alive."
The Wizard was pretty busy, just then, driving off the birds, but he managed to open his bag of magic and find a charm which instantly transformed the doves into three buttons. As they fell to the ground he picked them up and smiled with satisfaction. The tin button was Imp Olite, the brass button was Imp Udent and the lead button was Imp Ertinent. These buttons the Wizard placed in a little box which he put in his jacket pocket.
"Now," said he, "the Imps cannot annoy travelers, for we shall carry them back with us to the Emerald City."
"But we dare not use the buttons," said Ozma, smiling once more now that the danger was over.
"Why not?" asked the Wizard. "I intend to sew them upon my coat and watch them carefully. The spirits of the Imps are still in the buttons, and after a time they will repent and be sorry for their naughtiness. Then they will decide to be very good in the future. When they feel that way, the tin button will turn to silver and the brass to gold, while the lead button will become aluminum. I shall then restore them to their proper forms, changing their names to pretty names instead of the ugly ones they used to bear. Thereafter the three Imps will become good citizens of the Land of Oz and I think you will find they will prove faithful subjects of our beloved Princess Ozma."