"Let's have it over with." "Then we will leave here at once," said Aquareine.
She approached the window of the room and with one blow of her golden sword shattered the thick pane of glass.

The opening thus made was large enough for them to swim through if they were careful not to scrape against the broken points of glass.

The queen went first, followed by Trot and Cap'n Bill, with Clia last of all.
And now they were in the vast dome in which the castle and gardens of Zog had been built.

Around them was a clear stretch of water, and far above--full half a mile distant--was the opening in the roof guarded by the prince of the sea devils.

The mermaid queen had determined to attack this monster.