"
"How?" asked Dorothy.
"A balloon," said Oz, "is made of silk, which is coated with
glue to keep the gas in it. I have plenty of silk in the Palace,
so it will be no trouble to make the balloon. But in all this
country there is no gas to fill the balloon with, to make it float."
"If it won't float," remarked Dorothy, "it will be of no use to us."
"True," answered Oz. "But there is another way to make it
float, which is to fill it with hot air. Hot air isn't as good as
gas, for if the air should get cold the balloon would come down in
the desert, and we should be lost."
"We!" exclaimed the girl. "Are you going with me?"
"Yes, of course," replied Oz. "I am tired of being such a humbug.
If I should go out of this Palace my people would soon discover I am not
a Wizard, and then they would be vexed with me for having deceived them.
So I have to stay shut up in these rooms all day, and it gets tiresome.
I'd much rather go back to Kansas with you and be in a circus again.
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