"Why, he's the tin man I told you about. His name is Nick Chopper, and he has a lovely heart given him by the wonderful Wizard."
"Where does he live?" asked the boy.
"The Wizard? Oh, he lives in the Emerald City, which is just in the middle of Oz, where the corners of the four countries meet."
"Oh," said Button-Bright, puzzled by this explanation.
"We must be some distance from the Emerald City," remarked the shaggy man.
"That's true," she replied; "so we'd better start on and see if we can find any of the Winkies. They're nice people," she continued, as the little party began walking toward the group of trees, "and I came here once with my friends the Scarecrow, and the Tin Woodman, and the Cowardly Lion, to fight a wicked witch who had made all the Winkies her slaves."
"Did you conquer her?" asked Polly.
"Why, I melted her with a bucket of water, and that was the end of her," replied Dorothy. "After that the people were free, you know, and they made Nick Chopper—that's the Tin Woodman—their Emp'ror."
"What's that?" asked Button-Bright.