Even while that inexplicable heavenly pageant still burned against the heavens, something else took place, a thing of much greater importance to Chick. And, it happened right before his eyes.

In the front of the car was a dial, slightly raised above the level of the various controlling instruments. And all of a sudden this dial, a small affair about six inches across, broke into light and life.

First, there was a white blaze that covered the whole disc; then the whiteness abruptly gave way to a flood of colour, which resolved itself into a perfect miniature of the tri-coloured cloverleaf in the sky ahead. Chick saw, however that the positions of the red and green were just the obverse of what glowed in the distance; and then he heard the voice, strong and distinct, speaking with a slight metallic twang as from a microphone hidden in that little, blazing, coloured leaf:

"Listen, ye who have ears to listen!"

It was said in the Thomahlian tongue. The Geos breathed:

"The voice of the Prophet Jarados!"

But the next moment the unseen speaker began in another language-- clear, silver, musical--in English, and in a voice that Chick recognised!

"Chick! You have done well, my boy. Your courage and your intuition may lead us out. Follow the prophecy to the letter, Chick; it MUST come to pass, exactly as it is written! Don't fail to read it, there on the walls of the Temple of the Bell, when you encounter the Bar Senestro on the Day of the Prophet!

"I have discovered many things, my boy, but I am not omnipotent. Your coming has made possible my last hope that I may return to my own kind, and take with me the secrets of life. You have done right to trust your instinct; have no fear, yet remember that if you--if we--make one false step we are lost.

"Finally, if you should succeed in your contest with the Senestro, I shall send for you; but if you fail, I know how to die.

"Return at once to the Mahovisal. Don't cross into the Region of Carbon. Take care how you go back; the Bars are waiting. But you can put full confidence in the Rhamdas."

Then the speaker dropped the language of the earth and used the Thomahlian tongue again: "It is I who speak--I, the Prophet; the Prophet Jarados!"

All in the voice of Dr. Holcomb.

The blazing leaf faded into blackness, and the talking ceased. Chick was glad of the darkness; the whole thing was like magic, and too good to believe. The first actual words from the missing professor! Each syllable was frozen into Watson's memory.

The Geos was clutching his arm.

"Did you understand, my lord? We heard the voice of the prophet! What did he say?"

"Yes, I understand. He used his own language--my language. And he said"--taking the reins firmly into his hands--"he said that we must return to the Thomahlia. And we must beware of the Bars."

There was no thought of questioning him. Without waiting the Geos' command, the Jan Lucar began putting the craft about. Watson glanced at the sky; the great spectacle was gone; and he demanded of the soldier:

"How can we get back? How do we find our way?"