"No, sir; we didn't cause anything. It was the earthquake."

The man with the star stood for a time quietly thinking over this speech. Then he asked:

"What is an earthquake?"

"I don't know," said Zeb, who was still confused. But Dorothy, seeing his perplexity, answered:

"It's a shaking of the earth. In this quake a big crack opened and we fell through—horse and buggy, and all—and the stones got loose and came down with us."

The man with the star regarded her with his calm, expressionless eyes.

"The Rain of Stones has done much damage to our city," he said; "and we shall hold you responsible for it unless you can prove your innocence."

"How can we do that?" asked the girl.

"That I am not prepared to say. It is your affair, not mine. You must go to the House of the Sorcerer, who will soon discover the truth."

"Where is the House of the Sorcerer?" the girl enquired.

"I will lead you to it. Come!"

He turned and walked down the street, and after a moment's hesitation Dorothy caught Eureka in her arms and climbed into the buggy. The boy took his seat beside her and said: "Gid-dap Jim."