“Mercy, no!” answered the little girl. “How could anyone be safe when she’s going about sixty miles a minute?” Then, after a pause, she added: “But where do you s’pose we’re going to, Your Maj’sty?”

“Don’t ask her that, please don’t!” said Shaggy, who was not too far away to overhear them. “And please don’t ask me why, either.”

“Why?” said Betsy.

“No one can tell where we are going until we get there,” replied Shaggy, and then he yelled “Ouch!” for Polychrome had overtaken him and was now sitting on his head.

The Rainbow’s Daughter laughed merrily, and so infectious was this joyous laugh that Betsy echoed it and Hank said “Hee-haw!” in a mild and sympathetic tone of voice.

“I’d like to know where and when we’ll arrive, just the same,” exclaimed the little girl.

“Be patient and you’ll find out, my dear,” said Polychrome. “But isn’t this an odd experience? Here am I, whose home is in the skies, making a journey through the center of the earth—where I never expected to be!”

“How do you know we’re in the center of the earth?” asked Betsy, her voice trembling a little through nervousness.

“Why, we can’t be anywhere else,” replied Polychrome. “I have often heard of this passage, which was once built by a Magician who was a great traveler. He thought it would save him the bother of going around the earth’s surface, but he tumbled through the Tube so fast that he shot out at the other end and hit a star in the sky, which at once exploded.”