It watched them gape in stunned amazement, and laughed with mocking golden notes.
"I will tell you, humans. It will amuse me to have an audience not of my own creating. Watch!"
A slab of the glassy rock took form before them. Deep in it, a spot of brilliance grew.
It was a Sun, in the first blaze of its virile youth. It strode the path of its galactic orbit alone. Then, from the wheeling depths of space, a second Sun approached.
It was huge, burning with a blue-white radiance. There was a mating, and the nine worlds were born in a rush of supernal fire.
And there was life. Not on the nine burning planets. But in free space, little globes of fire, bits of the Sun itself shocked somehow to intelligence in the vast explosion of energy.
The picture blurred. The colors of the floating light were dulled and dreamy.
"There were many of us," it sighed. "We were like tiny Suns, living on the conversion of our own atoms. We played, in open space...."
Dim pictures washed the screen, glories beyond human comprehension—a faded vision of splendor, of alien worlds and the great wheeling Suns of outer space. The voice murmured:
"Like Suns, we radiated our energy. We could draw strength from our parent, but not enough. We died. But I was stronger than the rest, and more intelligent. I built myself a shell."
"Built it!" whispered Avery. "But how?"
"All matter is built of raw energy, electron and proton existing in a free state. With a part of my own mass I built this world around myself, to hold the energy of the Sun and check the radiation of my own vitality.
"I have lived, where my race died. I have watched the planets cool and live and die. I am not immortal. My mass grows less as it drains away through my shell. But it will be a long, long time. I shall watch the Sun die, too."
The voice was silent. The colors were ashes of light. Falken was stricken with a great poignant grief.
Then, presently, the little malicious flames frothed to life again, and the voice said:
"My greatest problem is amusement. Here in this black shell I am forced to devise pleasures from my own imagination."
Falken gasped. "The hunters, the cleft that vanished, and that hellish castle?" He was suddenly cold and hot at once.
"Clever, eh? I created my hunt some eons ago. According to my plan the beast can neither escape nor the hunters catch him. But, owing to the uncertainty factor, there is one chance in some hundreds of billions that one or the other event may occur. It affords me endless amusement."
"And the castle?" said Falken silkily. "That amused you, too."
"Oh, yes! Your emotional reactions.... Most interesting!" Falken raised his blaster and fired at the core of the light.
Living fire coiled and writhed. The Sun-child laughed.
"Raw energy only feeds me. What, are there no questions?"
Falken's voice was almost gentle. "Do you think of nothing but amusement?"
Savage colors rippled against the dim, sad mauves. "What else is there, to fill the time?"
Time. Time since little frozen Pluto was incandescent gas.
"You closed the opening we came through," said Avery abruptly.
"Of course."
"But you'll open it again? You'll let us go?"
The tone of his voice betrayed him. Falken knew, and Sheila.
"No," said Sheila throatily. "It won't let us go. It'll keep us up here to play with, until we die."
Ugly dark reds washed the Sun-child. "Death!" it whispered. "My creatures exist until I bid them vanish. But death, true death—that would be a supreme amusement!"
* * * * *
A desperate, helpless rage gripped Falken. The vast empty vault mocked him with his dead hopes. It jeered at him with solid walls that were built and shifted like smoke by the power of this lovely, soulless flame.
Built, and shifted....
Sudden fire struck his brain. He stood rigid, stricken dumb by the sheer magnificance of his idea. He began to tremble, and the wild hope swelled in him until his veins were gorged and aching.
He said, with infinite care, "You can't create real living creatures, can you?"
"No," said the Sun-child. "I can build the chemicals of their bodies, but the vital spark eludes me. My creatures are simply toys activated by the electrical interplay of atoms. They think, in limited ways, and they feel crude emotions, but they do not live in the true sense."
"But you can build other things? Rocks, soil, water, air?"
"Of course. It would take a great deal of my strength, and it would weaken my shell, since I should have to break down part of the rock to its primary particles and rebuild. But even that I could do, without serious loss."
There was silence. The blue distant fires flared in Falken's eyes. He saw the others staring at him. He saw the chances of failure bulk over him like black thunderheads, crowned with madness and death.
But his soul shivered in ecstasy at the thing that was in it.
The Sun-child said silkily, "Why should I do all this?"
"For amusement," whispered Falken. "The most colossal game you have ever had."
Brilliant colors flared. "Tell me, human!"
"I must make a bargain first."
"Why should I bargain? You're mine, to do with as I will."
"Quite. But we couldn't last very long. Why waste your imagination on the three of us when you might have thousands?"
Avery's amber eyes opened wide. A shocked incredulity slackened Sheila's rigid muscles. The voice cried:
"Thousands of humans to play with?"
The eager greed sickened Falken. Like a child wanting a bright toy—only the toys were human souls.
"Not until the bargain is made," he said.
"Well? What is the bargain? Quick!"
"Let us go, in return for the game which I shall tell you."
"I might lose you, and then have nothing."
"You can trust us," Falken insisted. He was shaking, and his nerves ached. "Listen. There are thousands of my people, living like hunted beasts in the deserts of the Solar System. They need a world, to survive at all. If you'll build them one in the heart of this planet, I'll bring them here.
"You wouldn't kill them. You'd let them live, to admire and praise you for saving them. It would
