"Perhaps it is a polite custom in Omaha, from which great country the Wizard originally came," suggested the Tin Woodman.
"It may be," admitted the Scarecrow.
"But why," asked Glinda, "did he make three secret visits to old Mombi?"
"Ah! Why, indeed!" echoed the Woggle-Bug, impressively.
"We know that the Wizard taught the old woman many of his tricks of magic," continued Glinda; "and this he would not have done had she not assisted him in some way. So we may suspect with good reason that Mombi aided him to hide the girl Ozma, who was the real heir to the throne of the Emerald City, and a constant danger to the usurper. For, if the people knew that she lived, they would quickly make her their Queen and restore her to her rightful position."
"An able argument!" cried the Scarecrow. "I have no doubt that Mombi was mixed up in this wicked business. But how does that knowledge help us?"
"We must find Mombi," replied Glinda, "and force her to tell where the girl is hidden."
"Mombi is now with Queen Jinjur, in the Emerald City," said Tip. "It was she who threw so many obstacles in our pathway, and made Jinjur threaten to destroy my friends and give me back into the old witch's power."
"Then," decided Glinda, "I will march with my army to the Emerald City, and take Mombi prisoner. After that we can, perhaps, force her to tell the truth about Ozma."