In giving the ring Glinda had warned the little girl not to use its magic powers unless she and Ozma were in real danger, but then she was to turn it on her finger once to the right and once to the left and Glinda's alarm bell would ring.
So the Sorceress now knew that danger threatened her beloved Ruler and Princess Dorothy, and she hurried to her magic room to seek information as to what sort of danger it was.

The answer to her question was not very satisfactory, for it was only: "Ozma and Dorothy are prisoners in the great Dome of the Isle of the Skeezers, and the Dome is under the water of the lake." "Hasn't Ozma the power to raise the island to the surface ?" inquired Glinda.
"No," was the reply, and the Record refused to say more except that Queen Coo-ee-oh, who alone could command the island to rise, had been transformed by the Flathead Su-dic into a Diamond Swan.
Then Glinda consulted the past records of the Skeezers in the Great Book.

After diligent search she discovered that Coo-ee-oh was a powerful sorceress who had gained most of her power by treacherously transforming the Adepts of Magic, who were visiting her, into three fishes--gold, silver and bronze--after which she had them cast into the lake.
Glinda reflected earnestly on this information and decided that someone must go to Ozma's assistance.

While there was no great need of haste, because Ozma and Dorothy could live in a submerged dome a long time, it was evident they could not get out until someone was able to raise the island.
The Sorceress looked through all her recipes and books of sorcery, but could find no magic that would raise a sunken island.

Such a thing had never before been required in sorcery.