After Ozma had told of her adventures in trying to prevent war between the Flatheads and the Skeezers, and Glinda had told all about the Rescue Expedition and the restoration of the three Adepts by the help of Ervic, a serious consultation was held as to how the island could be made to rise.
"I've tried every way in my power," said Ozma, "but Coo-ee-oh used a very unusual sort of magic which I do not understand.

She seems to have prepared her witchcraft in such a way that a spoken word is necessary to accomplish her designs, and these spoken words are known only to herself." "That is a method we taught her," declared Aurah the Adept.
"I can do no more, Glinda," continued Ozma, "so I wish you would try what your sorcery can accomplish." "First, then," said Glinda, "let us visit the basement of the island, which I am told is underneath the village." A flight of marble stairs led from one of Coo-ee-oh's private rooms down to the basement, but when the party arrived all were puzzled by what they saw.

In the center of a broad, low room, stood a mass of great cog-wheels, chains and pulleys, all interlocked and seeming to form a huge machine; but there was no engine or other motive power to make the wheels turn.
"This, I suppose, is the means by which the island is lowered or raised," said Ozma, "but the magic word which is needed to move the machinery is unknown to us." The three Adepts were carefully examining the mass of wheels, and soon the golden-haired one said: "These wheels do not control the island at all.

On the contrary, one set of them is used to open the doors of the little rooms where the submarines are kept, as may be seen from the chains and pulleys used.
Each boat is kept in a little room with two doors, one to the basement room where we are now and the other letting into the lake.
"When Coo-ee-oh used the boat in which she attacked the Flatheads, she first commanded the basement door to open and with her followers she got into the boat and made the top close over them.

Then the basement door being closed, the outer door was slowly opened, letting the water fill the room to float the boat, which then left the island, keeping under water." "But how could she expect to get back again ?" asked the Wizard.
"Why the boat would enter the room filled with water and after the outer door was closed a word of command started a pump which pumped all the water from the room.