worked steadily without rest, and without feeling fatigue.
Twice they went to the Chamber of Renewing, but except for these trips to the upper ways they were not out of the laboratories through all those days. Of Thrala there was no sign, nor did any one speak of her.
The Cavern dwellers were depending upon two defenses: an evil green liquid, to be thrown in frail glass globes, and a screen charged with energy. Shortly before the lifting of the Mists, these arms were transported to the entrance and installed there. Dandtan and Garin made a last inspection.
“Kepta makes the mistake of under-rating his enemies,” Dandtan reflected, feeling the edge of the screen caressingly. “When I was captured, on the day my people died, I was sent to the Black Ones laboratories so that their seekers after knowledge might learn the secrets of the Ancient Ones. But I proved a better pupil than teacher and I discovered the defense against the Black Fire. After I had learned that, Kepta grew impatient with my supposed stupidity and tried to use me to force Thrala to his will. For that, as for other things, shall he pay—and the paying will not be in coin of his own striking. Let us think of that.…” He turned to greet Urg and Trar and the other leaders of the Folk, who had approached unnoticed.
Among them stood Thrala, her gaze fixed upon the crystal wall between them and the thinning Mist. She noticed Garin no more than she did the Anas playing with her train and the women whispering behind her. But Garin stepped back into the shadows—and what he saw was not weapons of war, but cloudy black hair and graceful white limbs veiled in splendor.
Urg and one of the other chieftains bore down upon the door lever. With a protesting squeak, the glass wall disappeared into the rock. The green of Tav beckoned them out to walk in its freshness; it was renewed with lusty life. But in all that expanse of meadow and forest there was a strange stillness.
“Post sentries,” ordered Dandtan. “The Black Ones will come soon.”
He beckoned Garin forward as he spoke to Thrala:
“Let us go to the Hall of Thrones.”
But the Daughter did not answer his smile. “It is not meet that we should spend time in idle talk. Let us go instead to call upon the help of those who have gone before us.” So speaking, she darted a glance at Garin as chill as the arctic lands beyond the lip of Tav, and then swept away with Sera bearing her train.
Dandtan stared at Garin. “What has happened between you two?”
The flyer shook his head. “I don’t know. No man is born with an understanding of women—”
“But she is angered with you. What has happened?”
For a moment Garin was tempted to tell the truth: that he dared not break any barrier she chose to raise, lest he seize what in honor was none of his. But he shook his head mutely. Neither of them saw Thrala again until Death entered the Caverns.
CHAPTER TEN
Battle and Victory
Garin stood with Dandtan looking out into the plain of Tav. Some distance away were two slender, steel tipped towers, which were, in reality, but hollow tubes filled with the Black Fire. Before these dark clad figures were busy.
“They seem to believe us already defeated. Let them think so,” commented Dandtan, touching the screen they had erected before the Cavern entrance.
As he spoke Kepta swaggered through the tall grass to call a greeting:
“Ho, rock dweller, I would speak with you—”
Dandtan edged around the screen, Garin a pace behind. “I see you Kepta.”
“Good. I trust that your ears will serve you as well as your eyes. These are my terms: Give Thrala to me to dwell in my chamber and the outlander to provide sport for my captains. Make no resistance but throw open the Caverns so that I may take my rightful place in the Hall of Thrones. Do this and we shall be at peace.…”
“And this is our reply:”—Dandtan stood unmovingly before the screen—“Return to the Caves; break down the bridge between your land and ours. Let no Black One come hither again, ever.…”
Kepta laughed. “So, that be the way of it! Then this shall we do: take Thrala, to be mine for a space, and then to go to my captains—”
Garin hurled himself forward, felt Kepta’s lips mash beneath his fist; his fingers were closing about the other’s throat as Dandtan, who was trying to pull him away from his prey, shouted a warning: “Watch out!”
A morgel had leaped from the grass, its teeth snapping about Garin’s wrist, forcing him to drop Kepta, Then Dandtan laid it senseless by a sharp blow with his belt.
On hands and knees Kepta crawled back to his men. The lower part of his face was a red and dripping smear. He screamed an order with savage fury.
Dandtan drew the still raging flyer behind the screen. “Be a little prudent,” he panted. “Kepta can be dealt with in other ways than with bare hands.”
The towers were swinging their tips toward the entrance. Dandtan ordered the screen wedged tightly into place.
Outside, the morgel Dandtan had stunned got groggily to its feet. When it had limped half the distance back to its master, Kepta gave the order to fire. The broad beam of black light from the tip of the nearest tower caught the beast head on. There was a chilling scream of agony, and where the morgel had stood gray ashes drifted on the wind.
A hideous crackling arose as the black beam struck the screen. Green grass beneath seared away, leaving only parched earth and naked blue soil. Those within the Cavern crouched behind their frail protection, half blinded by the light from the seared grass, coughing from the chemical-ridden fumes which curled about the cracks of the rock.
Then the beam faded out. Thin smoke plumed from the tips of the towers, steam arose from the blackened ground. Dandtan drew a deep breath.
“It held!” he cried, betraying at last the fear which had ridden him.
Men of the Folk dragged engines of tubing before the screen, while others brought forth the globes of green liquid. Dandtan stood aside, as if this matter were the business of the Folk alone, and Garin recalled that the Ancient Ones were opposed to the taking of life.
Trar was in command now. At his orders the globes were posed on spoon-shaped holders. Loopholes in the screen clicked open. Trar brought down his hand in signal. The globes arose lazily, sliding through the loopholes and floating out toward the towers.
One, aimed short, struck the ground where the fire had burned it bare, and broke. The liquid came forth, sluggishly, forming a gray-green gas as the air struck it. Another spiral of gas arose almost at the foot of one of the towers—and then another…and another.
There quickly followed a tortured screaming, which soon dwindled to a weak yammering. They could see shapes, no longer human or animal, staggering about in the fog.
Dandtan turned away, his face white with horror. Garin’s hands were over his ears to shut out that crying.
At last it was quiet; there was no more movement by the towers. Urg placed a sphere of rosy light upon the nearest machine and flipped it out into the camp of the enemy. As if it were a magnet it drew the green tendrils of gas, to leave
