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.