They had just come abreast of this point and the Padre was observing the hill with that never-failing interest with which the scene always filled him. He believed there was nothing like it in all the world, and regarded it as a stupendous example of Nature's engineering. But now, without warning, his interest leapt to a pitch of wonderment that set his nerves thrilling and filled his thoughtful eyes with an unaccustomed light of excitement. One arm shot out mechanically, pointing at the black rocks, and a deep sigh escaped him.
"Mackinaw!" he cried, pulling his horse almost on to its haunches. "Look at that!"
Buck swung round, while Cæsar followed the mare's example so abruptly that his master was almost flung out of the saddle.
He, too, stared across in the direction indicated. And his whispered exclamation was an echo of the other's astonishment.
"By the----!"
Then on the instant an almost unconscious movement, simultaneously executed, set their horses racing across the open in the direction of the suspended lake.
The powerful Cæsar, with his lighter burden, was the first to reach the spot. He drew up more than two hundred yards from where the domed roof forming the lake bed hung above the waters of the creek. He could approach no nearer, and his rider sat gazing in wonder at the spectacle of fallen rock and soil, and the shattered magnificence of the acres of crushed and broken pine woods which lay before him.
The whole face of the hill for hundreds and hundreds of feet along this side had been ruthlessly rent from its place and flung broadcast everywhere, and, in the chaos he beheld, Buck calculated that hundreds of thousands of tons of the blackened rock and subsoil had been dislodged by the tremendous fall.
Just for an instant the word "washout" flashed through his mind. But he dismissed it without further consideration. How could a washout sever such rock? Even he doubted the possibility of lightning causing such destruction. No, his thoughts flew to an earth disturbance of some sort. But then, what of the lake? He gazed up at where the rocky arch jutted out from the parent hill, and apprehension made him involuntarily move his horse aside. But his observation had killed the theory of an earth disturbance. Anything of that nature must have brought the lake down. For the dislodgment began under its very shadow, and had even further deepened the yawning cavern beneath its bed.
The Padre's voice finally broke his reflections, and its tone suggested that he was far less awed, and, in consequence, his thoughts were far more practical.