"I'm afraid," said the Wizard regretfully, "that we can't get in, after all. Unless your sorcery can discover the word to open the marble door."

"That is probably some word only known to Coo-ce-oh," replied the Sorceress. "I may be able to discover what it is, but that will require time. Let us go back again to our companions."

"It seems a shame, after we have made the boat obey us, to be balked by just a marble door," grumbled the Wizard.

At Glinda's command the boat rose until it was on a level with the glass dome that covered the Skeezer village, when the Sorceress made it slowly circle all around the Great Dome.

Many faces were pressed against the glass from the inside, eagerly watching the submarine, and in one place were Dorothy and Ozma, who quickly recognized Glinda and the Wizard through the glass windows of the boat. Glinda saw them, too, and held the boat close to the Dome while the friends exchanged greetings in pantomime. Their voices, unfortunately, could not be heard through the Dome and the water and the side of the boat. The Wizard tried to make the girls understand, through signs, that he and Glinda had come to their rescue, and Ozma and Dorothy understood this from the very fact that the Sorceress and the Wizard had appeared. The two girl prisoners were smiling and in safety, and knowing this Glinda felt she could take all the time necessary in order to effect their final rescue.