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.