and broken, and slippery. There was no gripping soil, or natural foothold. Just the weather-worn rocks which offered no grip to Cæsar’s metal-shod hoofs. Yet the generous-hearted beast had floundered on up to the last stretch, where the hill rose abruptly at a perilous angle.
It was a terrible scramble. As he looked above, at the point where the sky-line was cut by the broken rocks, even the reckless heart of the man quailed. Yet there was no turning back. To do so meant certain disaster. No horse, however sure-footed, could ever hope to make the descent by the way they had come. Buck had looked back just for one brief second, but his eyes had instantly turned again for relief to the heights above. Disaster lay behind him. To go on—well, if he failed to reach the brow of the blackened hill it would mean disaster anyway. And a smile of utter recklessness slowly lit his face.
So, with set jaws and straining body, he urged Cæsar to a last supreme effort, and the great black creature responded gallantly. With head low to the ground, his muscles standing out like ropes upon his shoulders, his forelegs bent like grappling-hooks, his quarters tucked beneath him, he put his giant heart into the work. Step by step, inch by inch he gained, yawing and sliding, stumbling and floundering, making way where all way seemed impossible. Slowly they crept up, slowly, slowly they neared that coveted line. Buck was breathing hard. Cæsar was blowing and had thrown his mouth agape, a sign that beyond this he could make no further effort. Five yards—two yards. The jagged line seemed to come down to meet them. At last, with a final spring, the great horse trampled it under foot.
Buck heaved a sigh of relief.
“Gee!” he murmured. Then with the wide, black plain stretching before him, its limits lost in a strange mist, he flung out of the saddle.
He stared about him curiously. Devil’s Hill was in no way new to him. Many a time he had visited its mysterious regions, but always had he approached it from the prospecting camp, or his own farm, both of which lay away on the northern side of it.
A wide plateau, nearly two miles in extent, stretched out before him. It was as flat as the proverbial board, with just one isolated rock towering upon its bosom. This was the chief object of interest now. Away in the distance he beheld its ghostly outline, almost lost in the ruddy atmosphere which, just now, seemed to envelop the whole of that Western world.
It was a desolate scene. So desolate as to carry a strange sense of depression to the heart of the horseman. There was not a tree in sight—nor a single blade of grass. There was nothing but the funereal black of basaltic rock, of which the hill seemed to be one solid mass. Such was its desolation that even the horse seemed to be drooping at the sight of it. It was always the same with Buck. There was an influence about the place which always left him feeling rather hopeless. He knew the old Indian stories of superstition. He knew the awe in which the more ignorant among the white folk held this hill. But these things left him unaffected. He only regarded it from his own personal observations, which were not very enlivening.
Apart from the fact that not one atom of vegetation would grow either upon the surface or slopes of Devil’s Hill, no snows in winter had ever been known to settle upon its uninviting bosom. Long before the snow touched its surface, however low the temperature of the atmosphere, however severe a blizzard might be raging—and the Montana blizzards are notorious for their severity—the snow was turned to water, and a deluge of rain hissed upon its surface.
Then, too, there was that mystery rock in the distance of the great plateau. It was one of Nature’s little enigmas with which she loves to puzzle the mind of man. How came it there, shot up in the midst of that wide, flat stretch of rock? It stood within a few hundred yards of the eastern brink of the hill which, in its turn, was another mystery. The eastern extremity was not a mere precipice, it was a vast overhang which left Yellow Creek, upon whose banks the mining camps were pitched, flowing beneath the roof of a giant tunnel supported by a single side.
The rock on the plateau reared its misshapen head to the heavens at a height of something over two hundred feet, and its great base formed a vast cavern out of which, fanwise, spread a lake of steaming water, which flowed on to the very brink of the hill where it overshadowed the creek below. Thus it was, more than half the lake was held suspended in mid-air, with no other support than the parent hill from which its bed projected. It was an awesome freak of nature, calculated to astonish even eyes that were accustomed to the sight of it.
But Buck was not thinking of these things now. He was looking at the view. He was looking at the sky. He was looking from this great height for an explanation of the curious, ruddy light in the sunless sky, the teeming haze which weighted down the brain, and, with the slightest movement, opened the pores of the skin and set the perspiration streaming.
In all his years of the Montana hills he had never experienced such a curious atmospheric condition. Less than an hour ago he had left the Padre at the fur fort under a blazing summer sky, with the crisp mountain air whipping in his nostrils. Then, quite of a sudden, had come this change. There were no storm-clouds, and yet storm was in every breath of the superheated air he took. There was no wind, nor anything definite to alarm except this sudden blind heat and the purple hue which seemed to have spread itself over the whole world. Thus it was, as he neared the mysterious mountain, he had made up his mind to its ascent in the hope of finding, there upon the unwholesome plateau, the key to the atmospheric mystery.
But none seemed to be forthcoming, so, turning at last to the patient Cæsar, he once more returned to the saddle and rode on to the barren shores of Devil’s Lake.
The lake was a desolate spot. The waters stretched out before him, still, and silent, and black. There was not even a ripple upon its steaming surface. Here the haze hung as it always hung, and the cavern was belching forth deep mists, like the breathing of some prehistoric monster. He glanced up at the birdless rock above, and into the broken outlines of it he read the distorted features of some baleful, living creature, or some savage idol. But there was no answer here to the questions of his mind, any more than there had been on the rest of the plateau, so he rode on along the edge of the water.
He reached the extreme end of the lake and paused again. He could go no farther, for nothing but a rocky parapet, less than twenty feet wide, barred the waters from tumbling headlong to the depths below.
After a moment Cæsar grew restless, his equine nerves seemed to be on a jangle, and the steadying hand of his master had no effect. His eyes were wistful and dilated, and he glanced distrustfully from side to side, snorting loudly his evident alarm. Buck moved him away from his proximity to the water, and turned to a critical survey of the remoter crests of the Rocky Mountains.
The white snowcaps had gone. The purple of the lesser hills, usually so delicate in their gradings, were lost in one monotony of dull red light. The nearer distance was a mere world of ghostly shadows tinged with the same threatening hue, and only the immediate neighborhood was in any way clean cut and sharp to the eye. His brows drew together in perplexity. Again, down there in the valley, beyond the brink of the plateau, the dull red fog prevailed, and yet through it he could see the dim picture of grass-land, of woods, of river, and the rising slopes of more hills beyond.
No, the secret of the atmospheric phenomenon was not up here, and it was useless to waste more time. So he moved off, much to his impatient horse’s relief, in a direction where he knew a gentle slope would lead him from the hilltop to the neighborhood of the old farm and the ford across Yellow Creek.
But even this way the road required negotiation, for the same bald rocks and barrenness offered no sure foothold. However, Cæsar was used to this path, and made no mistakes. His master gave him his head, and, with eyes to the ground, the sure-footed beast moved along with almost cat-like certainty. At last the soft soil of the valley was reached again, and once more the deepening woods swallowed them up.
The end of Buck’s journey lay across Yellow Creek, where a few miserable hovels sheltered a small community of starving gold-seekers, and thither he now hastened. On his way he had a distant view of the old farm. He would have preferred to have avoided it, but that was quite impossible. He had not yet got over the parting from it, which had taken place the previous day. To him had fallen the lot of handing it over to the farm-wife who had been sent