For almost an hour he worked hard, using almost every magic tool in his black bag, and still Cap'n Bill and Trot were not rescued.

"Dear me!" exclaimed Dorothy, "I'm 'fraid we'll have to go to Glinda, after all."

That made the little Wizard blush, for it shamed him to think that his magic was not equal to that of the Magic Isle.

"I won't give up yet, Dorothy," he said, "for I know a lot of wizardry that I haven't yet tried. I don't know what magician enchanted this little island, or what his powers were, but I DO know that I can break any enchantment known to the ordinary witches and magicians that used to inhabit the Land of Oz. It's like unlocking a door; all you need is to find the right key."

"But 'spose you haven't the right key with you." suggested Dorothy; "what then?"

"Then we'll have to make the key," he answered.

The Glass Cat now came back to their side of the river, walking under the water, and said to the Wizard: "They're getting frightened over there on the island because they're both growing smaller every minute. Just now, when I left them, both Trot and Cap'n Bill were only about half their natural sizes."

"I think," said the Wizard reflectively, "that I'd better go to the shore of the island, where I can talk to them and work to better advantage. How did Trot and Cap'n Bill get to the island?"

"On a raft," answered the Glass Cat. "It's over there now on the beach."

"I suppose you're not strong enough to bring the raft to this side, are you?"

"No; I couldn't move it an inch," said the Cat.

"I'll try to get it for you," volunteered the Cowardly Lion. "I'm dreadfully scared for fear the Magic Isle will capture me, too; but I'll try to get the raft and bring it to this side for you."

"Thank you, my friend," said the Wizard.

So the Lion plunged into the river and swam with powerful strokes across to where the raft was beached upon the island. Placing one paw on the raft, he turned and struck out with his other three legs and so strong was the great beast that he managed to drag the raft from off the beach and propel it slowly to where the Wizard stood on the river bank.

"Good!" exclaimed the little man, well pleased.

"May I go across with you?" asked Dorothy.

The Wizard hesitated.