Then he turned, and headed for the nearest of the monster tunnels.

Instantly he detected a surprising eagerness in the renewed clucking of tongues, while the Gnomes raced ahead, behind, all about the two, capering like pet animals, showing these strangers the way into the tunnel.

As they entered it, Sarka tried to discover whence came the bluish glow. The floor seemed to be of bluish sandstone, though its color, too, might have been caused by the glow. It was warm, too, so warm that perspiration was breaking out on the cheeks of Sarka.

Whence came the glow? Apparently from the very walls of the tunnel, or its roof; but surely from somewhere, surely from some secret place, whence it was diffused all over.

"And Jaska," said Sarka, "the Moon, according to my father's researches, is literally honeycombed with craters like this one!"

Again, as he thought, that strange, sudden cessation of the clucking of the Gnomes. Whither were they leading them? It was plain to be seen that the Gnomes were heading for some destination, almost herding Sarka and Jaska toward it. Capering creatures, who behaved witlessly, yet were far from witless. If Sarka were not sadly mistaken, these were Moon-men--and women, too, perhaps, since he could not tell the s.e.x of them--and those gleaming cubes were their outer guards, perhaps slaves.

If the cubes were really of metal--they had felt warm to Sarka's touch--then these Moon-men had gone further in science than Earthlings, as they had imbued at least some metals, or stones, with intelligence sufficiently advanced for them to perform actions independently of their masters' wills.

Sarka, too, was remembering another thing: that he had touched one of these Gnomes, to remove it from Jaska--and had felt a distinct shock that was patently electrical!

The bluish glow was increasing, becoming more soft and mellow, shading gradually into golden, as they advanced--shading still as they preceded until it was almost white, almost blinding, in its radiance.

Then, of a sudden, the clucking of the Gnomes ended, and the creatures ceased their capering, fell into something that might have been an ordered military formation, and with Jaska and Sarka in the midst of them, moved straight toward a broad expanse of the tunnel wall, in the face of which appeared three long lines, deeply cut in the shape of a triangle.

The Gnome who had first leaped upon Jaska advanced to the wall, paused with his face almost against the lower line of the triangle, and remained there, intently staring, while the other Gnomes remained mute and unmoving.

Stronger and stronger appeared the blinding light. Slowly the inner portion of the triangle began to give inward, like a door. And out of the opening came that blinding radiance.

As the triangular door stood entirely open, Sarka and Jaska stood in thunderstruck silence, staring like people bereft of their senses. For there, standing in the opening, the now white radiance itself a mantle to cover her, was a woman, unclothed save for the radiance, who might have been of the Earth, save that she was more beautiful than any woman of Earth.

Beside her the radiant beauty of Jaska paled, became wan and sickly.

But Sarka noted immediately her eyes, whose depths bewildered, amazed him. For in them he could see no expression, no feeling, but only abysmal cruelty. That she was Sarka's master, and Jaska's master, and master of all these Gnomes, became instantly apparent for telepathically she addressed Sarka.

"I am busy now. The Moon-people will hold you prisoners in the Place of the Blue light, until I am ready to give you to the Cone!"

CHAPTER XV

_The Place of the Blue Light_

So the Gnomes were Moon-people, masters of the Moon cubes! And people and cubes were ruled by a woman who resembled a woman of Earth!

The Gnomes took them back the way they had come.

Where, Sarka wondered, were the people of the Gens of Dalis? And where was Dalis himself! Sarka was sure that, in those first discords which had come out of the crater, he had heard at least a hint of the laughter of Dalis.

And this woman clothed in radiance--who was she? And what? That she was a creature of the Moon, and yet resembled in all ways a woman of Earth, save that she was more beautiful than any woman Sarka had ever seen, seemed almost impossible to believe. Yet he had seen her. So had Jaska, and as Sarka and Jaska, with the capering Gnomes still about them, were led away to a fate at which they could only guess, Sarka wondered at Jaska's silence and at the strange lack of expression on her face.

He pressed her hand, but somehow she failed to return the pressure, mystifying more than ever. This sudden coldness was not like Jaska.

Back they went through the vast cavern where the cone of the bluish column still moaned and murmured. Sarka moved as close to the cone as the Gnomes would permit, and peered up along the mighty length of the column. At its tip was still the Earth, like a star viewed from the bottom of a deep well.

Smaller, too, it seemed, which proved that Sarka's breaking of the blue column had been but momentary, that the column had almost instantly regained its contact with the Earth. What was its source, what the composition of the column?

At the moment there could be no answer to the question. Now the Gnomes were escorting them into another tunnel, whose glow was even bluer than that which the two had experienced in the other tunnels. And the deeper they penetrated, the more distant from the cavern of the Cone, the deeper in color became that light.

Finally the Gnome who had mentally asked permission of the Radiant Woman to show her Jaska and Sarka pa.s.sed before another expanse of wall, identical in appearance with that of the wall of the triangle from which the Radiant Woman had appeared.

This time the Gnome managed ingress by a strange clucking sound, with his triangular lips held close to the base-line of the triangle.

Now the door swung open; but the radiance which now came out was not clear white, as in the case of the outer door, but deeply, coldly blue. For the first time the Gnomes used force with their prisoners, thus proving to them that they were indeed prisoners. Their tiny feet caught at Sarka and at Jaska, and forced them through the door, which swung shut behind them.

Sarka looked at Jaska who, in this strange new light, had taken on the color of indigo, and smiled at her. She did not return his smile, but her eyes looked deeply, somewhat sorrowfully, into his. As though she asked him a question he could not understand, to which he could therefore give no answer.

Sarka was now conscious of the fact that the heat of their prison-house--whose character they did not as yet know--was becoming almost unbearable. They were alone, too, for the Gnomes had not entered the door of triangle. Sarka partially removed his life mask, and testing the atmosphere of the place, found it capable of being breathed without the mask. He signalled mentally to Jaska to remove her mask, and when the girl had done so he took her in his arms and kissed her on the lips.

She accepted his caress, but did not return it, and her eyes still peered deeply into his.

"Well, beloved," he said. "I am terribly sorry. But I did not want you to come because I was afraid that something of this sort would happen."

She did not answer.

"What is it, Jaska?" he said at last.

"What did you think of that woman?" she asked softly.

"Beautiful!" he said enthusiastically. "Fearfully beautiful! But did you see her eyes? She had no more mercy in her heart than if she were made of stone! And she hated us both the moment she saw us!"

"And you, Sarka--did you hate her, too?"

Sarka stared at her, not comprehending.

"I feel," he said, "that if we are ever to escape her, we must kill her, or render her incapable of retaining us!"

Then, of her own accord, Jaska placed her arms around Sarka, and gave him her lips. Her new behavior was as incomprehensible to Sarka as her former enigmatic expression had been. Wise in the ways of science was Sarka, but he knew nothing of women!

Now hand in hand again, they began a survey of their prison house. The bluish glow was unbearable to the eyes, and tears came unbidden and ran down the cheeks of the prisoners. In a minute or two, perspiration was literally bathing the bodies of the two. After a questioning exchange of glances, Sarka swiftly divested himself of his costume, stripping down to the gray toga of Earth's manhood. With a shrug, Jaska removed her clothing to her own toga, and the two suits Sarka carried under his arm.

They started ahead, exploring, then sprang back with a cry of fright.

Sarka did not know whether it was Jaska or himself who had cried out; for just as they moved forward, a rent opened in the floor at their feet, and their eyes for a moment--they could stand no longer--peered into a bluely flaming abyss which, save for the color, reminded Sarka of the word pictures of h.e.l.l he had read in Earth's books of antiquity!

As the two stepped back, the rent in the floor closed instantly. Sarka had noted where the end of it had been, and started to detour, his eyes on the floor.