Dorothy sat up in bed, rubbing her eyes to get the sleep out of them, and then found it was daybreak.
Ozma was hurriedly dressing herself.
"What is it ?" asked Dorothy, jumping out of bed.
"I'm not sure," answered Ozma "but it feels as if the island is sinking." As soon as possible they finished dressing, while the creaking and swaying continued.

Then they rushed into the living room of the house and found Lady Aurex, fully dressed, awaiting them.
"Do not be alarmed," said their hostess.

"Coo-ee-oh has decided to submerge the island, that is all.

But it proves the Flatheads are coming to attack us." "What do you mean by sub-sub-merging the island ?" asked Dorothy.
"Come here and see," was the reply.
Lady Aurex led them to a window which faced the side of the great dome which covered all the village, and they could see that the island was indeed sinking, for the water of the lake was already half way up the side of the dome.

Through the glass could be seen swimming fishes, and tall stalks of swaying seaweeds, for the water was clear as crystal and through it they could distinguish even the farther shore of the lake.
"The Flatheads are not here yet," said Lady Aurex.