As soon as they had breakfasted the next morning,Glinda and the Wizard and the three Adepts went down tothe shore of the lake and formed a line with theirfaces toward the submerged island. All the others cameto watch them, but stood at a respectful distance inthe background.

At the right of the Sorceress stood Audah and Aurah,while at the left stood the Wizard and Aujah. Togetherthey stretched their arms over the water's edge and inunison the five chanted a rhythmic incantation.

This chant they repeated again and again, swayingtheir arms gently from side to side, and in a fewminutes the watchers behind them noticed that the lakehad begun to recede from the shore. Before long thehighest point of the dome appeared above the water.Gradually the water fell, making the dome appear torise. When it was three or four feet above the surfaceGlinda gave the signal to stop, for their work had beenaccomplished.

The blackened submarine was now entirely out ofwater, but Uncle Henry and Cap'n Bill managed to pushit into the lake. Glinda, the Wizard, Ervic and theAdepts got into the boat, taking with them a coil ofstrong rope, and at the command of the Sorceress thecraft cleaved its way through the water toward the partof the Dome which was now visible.

"There's still plenty of water for the fish to swimin," observed the Wizard as they rode along. "Theymight like more but I'm sure they can get along untilwe have raised the island and can fill up the lakeagain."

The boat touched gently on the sloping glass of theDome, and the Wizard took some tools from his black bagand quickly removed one large pane of glass, thusmaking a hole large enough for their bodies to passthrough. Stout frames of steel supported the glass ofthe Dome, and around one of these frames the Wizardtied the end of a rope.

"I'll go down first," said he, "for while I'm not asspry as Cap'n Bill I'm sure I can manage it easily. Areyou sure the rope is long enough to reach the bottom?"

"Quite sure," replied the Sorceress.

So the Wizard let down the rope and climbing throughthe opening lowered himself down, hand over hand,clinging to the rope with his legs and feet. Below inthe streets of the village were gathered all theSkeezers, men, women and children, and you may be surethat Ozma and Dorothy, with Lady Aurex, were filledwith joy that their friends were at last coming totheir rescue.

The Queen's palace, now occupied by Ozma, wasdirectly in the center of the Dome, so that when therope was let down the end of it came just in front ofthe palace entrance. Several Skeezers held fast to therope's end to steady it and the Wizard reached theground in safety. He hugged first Ozma and thenDorothy, while all the Skeezers cheered as loud as theycould.

The Wizard now discovered that the rope was longenough to reach from the top of the Dome to the groundwhen doubled, so he tied a chair to one end of the ropeand called to Glinda to sit in the chair while he andsome of the Skeezers lowered her to the pavement. Inthis way the Sorceress reached the ground quitecomfortably and the three Adepts and Ervic soonfollowed her.

The Skeezers quickly recognized the three Adepts atMagic, whom they had learned to respect before theirwicked Queen betrayed them, and welcomed them asfriends. All the inhabitants of the village had beengreatly frightened by their imprisonment under water,but now realized that an attempt was to be made torescue them.

Glinda, the Wizard and the Adepts followed Ozma andDorothy into the palace, and they asked Lady Aurex andErvic to join them. After Ozma had told of heradventures in trying to prevent war between theFlatheads and the Skeezers, and Glinda had told allabout the Rescue Expedition and the restoration of thethree Adepts by the help of Ervic, a seriousconsultation was held as to how the island could bemade to rise.

"I've tried every way in my power," said Ozma, "butCoo-ee-oh used a very unusual sort of magic which I donot understand. She seems to have prepared herwitchcraft in such a way that a spoken word isnecessary to accomplish her designs, and these spokenwords are known only to herself."

"That is a method we taught her," declared Aurah theAdept.

"I can do no more, Glinda," continued Ozma, "so Iwish you would try what your sorcery can accomplish."

"First, then," said Glinda, "let us visit thebasement of the island, which I am told is underneaththe village."

A flight of marble stairs led from one of Coo-ee-oh'sprivate rooms down to the basement, but when the partyarrived all were puzzled by what they saw. In thecenter of a broad, low room, stood a mass of great cog-wheels, chains and pulleys, all interlocked and seemingto form a huge machine; but there was no engine orother motive power to make the wheels turn.

"This, I suppose, is the means by which the island islowered or raised," said Ozma, "but the magic wordwhich is needed to move the machinery is unknown tous."

The three Adepts were carefully examining the mass ofwheels, and soon the golden-haired one said:

"These wheels do not control the island at all. Onthe contrary, one set of them is used to open the doorsof the little rooms where the submarines are kept, asmay be seen from the chains and pulleys used. Each boatis kept in a little room with two doors, one to thebasement room where we are now and the other lettinginto the lake.

"When Coo-ee-oh used the boat in which she attackedthe Flatheads, she first commanded the basement door toopen and with her followers she got into the boat andmade the top close over them. Then the basement doorbeing closed, the outer door was slowly opened, lettingthe water fill the room to float the boat, which thenleft the island, keeping under water."

"But how could she expect to get back again?" askedthe Wizard.

"Why the boat would enter the room filled with waterand after the outer door was closed a word of commandstarted a pump which pumped all the water from theroom. Then the boat would open and Coo-ee-oh couldenter the basement."

"I see," said the Wizard. "It is a clevercontrivance, but won't work unless one knows the magicwords."

"Another part of this machinery," explained thewhite-haired Adept, "is used to extend the bridge fromthe island to the mainland. The steel bridge is in aroom much like that in which the boats are kept, and atCoo-ce-oh's command it would reach out, joint by joint,until its far end touched the shore of the lake. Thesame magic command would make the bridge return to itsformer position. Of course the bridge could not be usedunless the island was on the surface of the water."

"But how do you suppose Coo-ee-oh managed to sink theisland, and make it rise again?" inquired Glinda.

This the Adepts could not yet explain. As nothingmore could be learned from the basement they mountedthe steps to the Queen's private suite again, and Ozmashowed them to a special room where Coo-ee-oh kept hermagical instruments and performed all her arts ofwitchcraft.