The light he had seen extended as he neared it into what looked like a great fence of flame lying across his way. There were gaps in the fence where the flame, still continuous, was not so high as elsewhere. He did not hesitate. He ran straight ahead. Closer and closer behind him crowded the pursuing wolves, and straight at the flame he ran. There was one chance in many, he thought, and he took it without hesitation. Close before him now loomed the wall of flame. Close behind him slavering jaws were working in anticipation, and there was a strain for the last rush. There was no alternative. Straight at the fire wall where it was lowest rushed Ab, and with a great leap he went at and through the curling crest of the yellow flame!
The man had found safety! There was a moment of heat and then he knew himself to be sprawling upon green turf. A little of the strength of desperation was still with him and he bounded to his feet and looked about. There were no wolves. Beside him was a great flat rock, and he clambered upon this, and then, over the crest of the flames could see easily enough the glaring eyes of his late pursuers. They were running up and down, raging for their prey, but kept from him beyond all peradventure by the fire they could not face. Ab started upright on the rock panting and defiant, a splendid creature erect there in the firelight.
Soon there came to the man a more perfect sense of his safety. He shouted aloud to the flitting, snarling creatures, which could not harm him now; he stooped and found jagged stones, which he sent whirling among them. There was a savage satisfaction in it.
Suddenly the man fell to the ground, fairly groaning with exhaustion. Nature had become indignant and the time for recuperation had been reached. The wearied runner lay breathing heavily and was soon asleep. The flames which had afforded safety gave also a grateful warmth in the chill night, and so it was that scarcely had his body touched the ground when he became oblivious to all about him, only the heaving of the broad chest showing that the man lying fairly exposed in the light was a living thing. The varying wind sometimes carried the sheet of flame to its utmost extent toward him, so that the heat must have been intense, and again would carry it in an opposite direction while the cold air swept down upon the sleeping man. Nothing disturbed him. Inured alike to heat and cold, Ab slept on, slept for hours the sleep which follows vast strain and endurance in a healthy human being. Then the form lying on the ground moved restlessly and muttered exclamations came from the lips. The man was dreaming.
For as the sleeper lay there--he remembered it when he awoke and wondered over it many times in after years--Oak sprang through the flames, as he himself had done, and soon lay panting by his side. The lapping of the fire, the snapping and snarling of the wolves beyond and the familiar sound of Oak's voice all mingled confusedly in his ears, and then he and Oak raced together over the rough ground, and wrestled and fought and played as they had wrestled and fought and played together for years. And the hours passed and the wind changed and the flames almost scorched him and Ab started up, looking about him into the wild aspect of the Fire Country; for the night had passed and the sun had risen and set again since the exhausted man had fallen upon the ground and become unconscious.
Ab rolled instinctively a little away from the smoky sheets of flame and, sitting up, looked for Oak. He could not see him. He ran wildly around among the rocks looking for him and despairingly called aloud his name. The moment his voice had been hoarsely lifted, "Oak!" the memory of all that had happened rushed upon him. He stood there in the red firelight a statue of despair. Oak was dead; he had killed Oak, and buried him with his own hands, and yet he had seen Oak but a minute ago! He had bounded through the flames and had wrestled and run races with Ab, and they had talked together, and yet Oak must be lying in the ground back there in the forest by the little hill. Oak was dead. How could he get out of the ground? Fear clutched at Ab's heart, his limbs trembled under him. He whimpered like a lost and friendless hound and crouched close to the hospitable fire. His brain wavered under the stress of strange new impressions. He recalled some mutterings of Old Mok about the dead, that they had been seen after it was known that they were deep in the ground, but he knew it was not good to speak or think of such things. Again Ab sprang to his feet. It would not do to shut his eyes, for then he saw plainly Oak in his shallow hole in the dark earth and the face Ab had hurried to cover first when he was burying his friend, there under the trees. And so the night wore away, sleep coming fitfully from time to time. Ab could not explore his retreat in the strange firelight nor run the risks of another night journey across the wild beasts' chosen country. He began to be hungry, with the fierce hunger of brute strength, sharpened by terrific labors, but he must wait for the morning. The night seemed endless. There was no relief from the thoughts which tortured him, but, at last, morning broke, and in action Ab found the escape he had longed for.
[CHAPTER XX.]
THE FIRE COUNTRY.
It was light now and the sun shone fairly on Ab's place of refuge. As his senses brought to him full appreciation he wondered at the scene about him. He was in a glade so depressed as to be a valley. About it, to the east and north and west, in a wavering, tossing wall, rose the uplifting line of fire through which he had leaped, though there were spaces where the height was insignificant. On the south, and extending till it circled a trifle to east, rose a wall of rock, evidently the end of a forest-covered promontory, for trees grew thickly to its very edge and their green branches overhung its sheer descent. Coming from some crevice of the rocks on the east, and tumbling downward through the valley, was a riotous brook, which disappeared through some opening at the west. Within this area, thus hemmed in by fire and rock, appeared no living thing save the birds which sang upon the bushes beside the small stream's banks and the butterflies which hung above the flowers and all the insect world which joined in the soft, humming chorus of the morning. It was something that Ab looked upon with delighted wonder, but without understanding. What he saw was not a marvel. It was but the result of one of many upheavals at a time when the earth's cooled shell was somewhat thinner than now and when earthquakes, though there were no cities to overthrow, at least made havoc sometimes by changing the face of nature. There had come a great semi-circular crack in the earth, near and extending to the line of the sheer rock range. The natural gas, the product of the vegetation of thousands of centuries before, had found a chance to escape and had poured forth into the outer world. Something, perhaps a lightning stroke and a flaming tree, perhaps some cave man making fire and consumed on the instant when he succeeded, had ignited the sheet of rising gas, and the result was the wall of flame. It was all natural and commonplace, for the time. There were other upleaping flame sheets in the surrounding region forever burning--as there are in northern Asia to-day--but Ab knew of these fires only from Old Mok's tales. He stood wonderstruck at what he saw about him.