And the two mounted nimbly.
The bear followed, till the branches began to yield too perilously beneath his weight. Then Grôm and the girl slipped over into the next tree. As they did so another bear even huger than the first, and apparently her mate, appeared below, glanced up with shrewd, implacable eyes, and proceeded to climb the second tree.
Grôm looked at the girl with piercing anxiety such as he had never known before.
“Can you run, very fast?” he demanded.
The girl laughed, her terror almost forgotten in her pride at having once more saved him.
“I ran from the wolves,” she reminded him.
“Then we must run, perhaps very far,” answered Grôm, reassured, “till we find some place of steep rocks where we can fight with some hope. For these beasts are obstinate, and will never give up from pursuing us. And, unlike the red cave-bears they seem to know how to climb trees.”
When both bears were high in the two trees, Grôm and the girl slipped down by the bending tips of the branches, almost as swiftly as falling. They snatched up Grôm’s two spears and A-ya’s broken one, and ran, down along the brook toward the line of the smoking hills. The bears, descending more slowly, came after them at a terrific, ponderous gallop.
The girl ran, as she had said, well–so well that Grôm who was famous in the tribe for his running, did not have greatly to slacken his pace in her favor. Finding that, at first, they gained slightly on their pursuers, Grôm bade her slow down a little till they did no more than hold their own. Fearing lest she should exhaust herself, he ran always a pace behind her, admonishing her how to save her strength and her breath, and ever warily casting his eyes about for a possible refuge. Warily, too, he chose the smoothest ways, sparing her feet. For he knew that if she gave out and fell he would stop and fight his last fight over her body.
For an hour or more the girl ran easily. Then she began to show signs of distress. Her face grew ashen, the breath came harshly from her open lips, and once or twice she stumbled. With the first pang of fear at his heart, Grôm closed up beside her, made her lean heavily on his rigid forearm, and cheered her with words of praise. He pointed to a spur of broken mountains now close ahead, with a narrow valley cleaving them midway.
“There will be ledges,” he said, “where we can defend ourselves, and where you can rest.”
Skirting a bit of jungle, so dense with massive cane and thorned creepers that nothing could penetrate it, they came suddenly upon a space of barren gray plain, and saw, straight ahead, the opening of the valley. It was not more than a couple of furlongs distant. And its walls, partly clothed with shrubbery, partly naked, were so seamed and cleft and creviced that they appeared to promise many convenient retreats. But across the mouth of the valley extended an appalling barrier. From an irregular fissure in the parched earth, running on a slant from one wall to the other, came tongues of red flame, waving upwards to a height of several feet, sinking back, rising again, and bowing as if in some enchanted dance.
Grôm’s heart stood still in awe and amazement, and for a second he paused. The girl shut her eyes in unspeakable terror, and her knees gave way beneath her. As she sank, Grôm’s spirit rose to the emergency. The bears were now almost upon them. He jerked the girl violently to her feet, and spoke to her in a voice that brought her back to herself. Dragging her by the wrist, he ran on straight for the barrier. The girl, obedient to his order, shrank close to his side and ran on bravely, keeping her eyes upon the ground.
“If they are gods, those bright, dancing things,” said Grôm, with a confidence he was far from feeling, “they will save us. If they are devils, I will fight them.”
A little to the right appeared a gap in the leaping barrier, an opening some fifty feet across. Grôm made for the center of this opening. The fissure here was not more than three feet in width. The runners took it in their stride. But a fierce heat struck up from it. It filled the girl with such horror that her senses failed her utterly. She ran on blindly a dozen paces more, then reeled and fell in a swoon. Before her body touched the ground, Grôm had swung her up into his arms, but as he did so he looked back.
The bears were no longer pursuing. A spear’s-throw back they had stopped, growling and whining, and swaying their mountainous forms from side to side in angry irresolution.
“They fear the bright, dancing things,” said Grôm to himself; and added, with a throb of exultation, “which I do not fear.”
Noticing for the first time in his excitement that the ground, here parched and bare, was uncomfortably hot beneath his feet, he carried his burden a few rods further on, to where the green began again, and laid her down on the thick herbage. Then he turned to see what the bears were going to do.
Seeing that their intended prey made no further effort to flee, the two monsters grew still more excited. For a moment Grôm thought they would dare the passage of the barrier, but he was reassured to see that the flames filled them with an insuperable fear. They dared not come nearer than the thin edges of the verdure. At last, as if the same notion had struck them both at once, they whirled about simultaneously, made off among the dense thickets to the right, and disappeared.
Grôm knew far too well the obstinate vindictiveness of their kind to think that they had given up the chase; but, feeling safe for the present, and seeing that the girl, recovered from her swoon, was sitting up and staring with awed eyes at the line of fire, he turned all his attention to these mysterious, shining, leaping shapes to which they owed their escape.
With an attitude of deference, yet carrying both club and spear in readiness, he slowly approached the barrier, at the point where the flames were lowest and least imposing. Their heat made him very uneasy, but under the eyes of the girl he would show no sign of fear. At a distance of six or eight feet he stopped, studying the thin, upcurling tongues of brightness. Their heat, at this distance, was uncomfortable to his naked flesh, but as he stood there wondering and took no further hurt, his confidence grew. At length he dared to stretch out his spear-tip and touch the flames, very respectfully. The green-hide thongs which bound the flint to the wood smoked, shriveled and hissed. He withdrew the weapon in alarm, and examined the tip. It was blackened, and hot to the touch. But, seeing that the bright dancers had taken no notice, he repeated the experiment. Several times he repeated it, deeply pondering, while the girl, from her place at the edge of the grass, stared with the wide eyes of a child.
At last, though the green thongs still held, the dry wood burst into flame. Startled to find that when he drew the point back he brought a portion of the shining creature with it, Grôm dashed the weapon down upon the ground. The flame, insufficiently started, flickered and died. But it left a spark, winking redly on the blackened wood. Audacious in his consuming curiosity, Grôm touched it with his finger. It stung smartly, and Grôm snatched back his finger with an exclamation of alarm. But by that touch the spark itself was extinguished. That was an amazing thing. Sucking his finger, Grôm stood gazing down at the spear-tip, which had but now been so bright, and was now so black. Plainly, it was a victory for him. He did not understand it. But at least the Mysterious Ones were not invincible, however much the bears feared them. Well, he did not fear them, he said proudly in his heart. Aloud he said to A-ya:
“The Shining Dancers are our friends, but they do not like to be touched. If you touch them, they bite.”
His heart swelled with a vast, unformulated hope. Ideas, possibilities which he could not yet grasp, seethed in his brain. Dimly, but overpoweringly, he realized that he had passed the threshold of a new world. He picked up the spear and turned to renew his experiments.
This time he let the fire take well hold upon the spear-tip before he withdrew it. Then he held it upright, burning like a torch. As he gazed at it raptly a
