"I noticed that rock, as I said before," declared Bill. "You noticed how round it was on one side? Well, a man could take this lever, and by teetering on it until he got it in motion, finally upset it. The chances were a hundred to one it would land in the mouth of the shaft. And it's a cinch, it seems to me, he wouldn't do that for fun." Dick shook his head gravely. "But who could it be?" he insisted. "Who is there that could want us out of the way badly enough to murder us? No one here knows or cares a continental about us! It seems incredible. It must have been sheer carelessness of some restless loafer who wanted to see the rock roll." Yet they knew that the theory was scarcely tenable. They walked farther along the path and found that it was one used by workmen, evidently, leading at last down the steep mountain side and across to the Rattler. They surmised that it must be one made by the timber cutters for the mine, and learned, in later months, that the surmise was correct. "It makes one thing certain," Bill declared that evening when, candidly discouraged, they sat on the little porch in front of the office they had made their home and discussed the day's findings. "And that is that until we get a force to work here, if we ever do, it ain't a right healthy place for us. Of course with a gang of men around there wouldn't be a ghost of a chance for any enemy to get us; but until then we'd better watch out all the time. I begin to believe that about everything that's happened to us here has been the work of somebody who ain't right fond of us. Wish we could catch him at it once!" There was a grim undercurrent in his wish that left nothing to words. They remembered that in all the time since their arrival they had seen no other human being, the Rattler men having left them as severely alone as if they had been under quarantine. In the stillness of twilight they heard the slow, soft padding of a man's feet laboriously climbing the hill, and listened intently at the unusual sound. "Wonder who that is," speculated Bill, leaning forward and staring at the dim trail. "Looks like a dwarf from here. Some old man of the mountain coming up to drive us off!" "Hello," hailed a shrill, quavering voice. "Be you the bosses?" "We are," Dick shouted, in reply, "Come on up." The visitor came halting up the slope, and they discerned that he was lame and carrying a roll of blankets. He paused before them, panting, and then dropped the roll from his back, and sat down on the edge of the porch with his head turned to face them. He was white headed and old, and seemed to have exhausted his surplus strength in his haste to reach them before darkness.