Johnston shuddered superstitiously at the tone of Branasko's quivering voice, and their giant shadows which stood out on the smooth crystal like silhouettes. So clear-cut were they, that, in his own shadow, the American could see his breast heaving and in Branasko's the quivering of the Alphian's huge body and limbs.
“If we have happened upon the home of the sun, only the spirit of the dead kings could tell what will become of us,” said Branasko.
“Puh! you are blindly superstitious,” said Johnston; “what if we do come upon the sun? Let's go down there and look into the mystery.”
Branasko fell into the rear and the American stoutly pushed ahead toward the light which was every moment increasing. As they advanced the cave got larger until it opened out into a larger plain over which hung fathomless darkness, and out of the plain a great dazzling globe of light was slowly rising.
“It is the sun itself,” exclaimed Branasko, and he sank to the earth and covered his face with his hands. “I have not thought ever to see it out of the sky.”
The American was deeply thrilled by the grand sight. He sat down by Branasko and together they watched the vast ball of light emerge from the black earth and gradually disappear in a great hole in the roof of the cavern. It left a broad stream of light behind it, and, now that the sun itself was out of view, the silent spectators could see the great square hole from which it had risen.
As if by mutual consent, they rose and made their way over the rocks to the verge of the hole, which seemed several thousand feet square. At first, owing to the brightness of the sun overhead, they could see nothing; but, as the great orb gradually disappeared, they began to see lights and the figures of men moving about below. Later they observed the polished parts of stupendous machinery—machinery that moved almost noiselessly.
Johnston caught sight of a great net-work of moving cables reaching from the machinery up through the hole above and exclaimed enthusiastically:—“A mechanical sun! electric daylight! What genius! A world in a great cave! Hundreds of square miles and thousands of well organized people living under the light of an artificial sun!”
The Alphian looked at him astonished. “Is it not so in your country?” he asked.
Johnston smiled. “The great sun that lights the outer world is as much greater than that ball of light as Alpha is greater than a grain of sand. But this surely is the greatest achievement of man. But while I now understand how your sun goes over the whole of Alpha, I cannot see how it returns.”