“I’m glad of that,” said Betsy. “I hope, Mr. Dragon, you won’t mind our riding on your back.”

“Not a bit,” replied Quox. “I’m in disgrace just now, you know, and the only way to redeem my good name is to obey the orders of the Jinjin. If he makes me a beast of burden, it is only a part of my punishment, and I must bear it like a dragon. I don’t blame you people at all, and I hope you’ll enjoy the ride. Hop on, please. All aboard for the other side of the world!”

Silently they took their places. Hank sat in the front seat with Betsy, so that he could rest his front hoofs upon the dragon’s head. Behind them were Shaggy and Polychrome, then Files and the Princess, and Queen Ann and Tik-Tok. The officers rode in the rear seats. When all had mounted to their places the dragon looked very like one of those sight-seeing wagons so common in big cities—only he had legs instead of wheels.

“All ready?” asked Quox, and when they said they were he crawled to the mouth of the Tube and put his head in.

“Good-bye, and good luck to you!” called Tubekins; but no one thought to reply, because just then the dragon slid his great body into the Tube and the journey to the other side of the world had begun.

At first they went so fast that they could scarcely catch their breaths, but presently Quox slowed up and said with a sort of cackling laugh:

“My scales! but that is some tumble. I think I shall take it easy and fall slower, or I’m likely to get dizzy. Is it very far to the other side of the world?”

“Haven’t you ever been through this Tube before?” inquired Shaggy.

“Never. Nor has anyone else in our country; at least, not since I was born.”