"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.
As nothing more could be done just then, Glinda ordered the boat to return to shore and it obeyed readily. First it ascended to the surface of the water, then the roof parted and fell into the slots at the side of the boat, and then the magic craft quickly made the shore and beached itself on the sands at the very spot from which it had departed at Glinda's command. All the Oz people and the Skeezers at once ran to the boat to ask if they had reached the island, and whether they had seen Ozma and Dorothy. The Wizard told them of the obstacle they had met in the way of a marble door, and how Glinda would now undertake to find a magic way to conquer the door.
Realizing that it would require several days to succeed in reaching the island raising it and liberating their friends and the Skeezer people, Glinda now prepared a camp half way between the lake shore and the palm trees.
The Wizard's wizardry made a number of tents appear and the sorcery of the Sorceress furnished these tents all complete, with beds, chairs, tables, flags, lamps and even books with which to pass idle hours. All the tents had the Royal Banner of Oz flying from the centerpoles and one big tent, not now occupied, had Ozma's own banner moving in the breeze.
Betsy and Trot had a tent to themselves, and Button Bright and Ojo had another. The Scarecrow and the Tin Woodman paired together in one tent and so did Jack Pumpkinhead and the Shaggy Man, Cap'n Bill and Uncle Henry, Tik-Tok and Professor Wogglebug. Glinda had the most splendid tent of all, except that reserved for Ozma, while the Wizard had a little one of his own. Whenever it was meal time, tables loaded with food magically appeared in the tents of those who were in the habit of eating, and these complete arrangements made the rescue party just comfortable as they would have been in their own homes.
Far into the night Glinda sat in her tent studying a roll of mystic scrolls in search of a word that would open the basement door of the island and admit her to the Great Dome. She also made many magical experiments, hoping to discover something that would aid her. Yet the morning found the powerful Sorceress still unsuccessful.
Glinda's art could have opened any ordinary door, you may be sure, but you must realize that this marble door of the island had been commanded not to open save in obedience to one magic word, and therefore all other magic words could have no effect upon it. The magic word that guarded the door had probably been invented by Coo-ee-oh, who had now forgotten it. The only way, then, to gain entrance to the sunken island was to break the charm that held the door fast shut. If this could be done no magic would be required to open it.
The next day the Sorceress and the Wizard again entered the boat and made it submerge and go to the marble door, which they tried in various ways to open, but without success.