"Where does it all come from?" I thought, laying my hand on the face of the rock before which I stood. My hand had touched it for a single heart-beat, no more, when I felt the color go out of my face, leaving me with wide, staring eyes, while I stood trembling and ghastly white in the breathless gloom. Like one suddenly bereft of all power of speech or motion I stared mutely at the black wall before me. I had felt the rock move! Standing there in that awful darkness, hundreds of feet underground, I understood what had happened, what was happening, and, dumb with the horror of that awful knowledge, stood motionless. All the stories that I had ever heard or read of sudden irruptions of water in mines, of dreadful cavings-in, flashed into my mind, and then, breaking the paralyzing trance of terror, I turned and ran toward the main tunnel. I tried to utter a warning shout as I ran, but my stiffened lips gave forth no sound. Happily, as I reached the main tunnel, the light at the foot of the shaft was in direct range with my vision, and between the shaft and myself I plainly saw a man hastening toward it. He was wearing a light gray coat. A quick glance toward the spot where I had left father and Joe showed nothing but darkness. They had both left. The hoisting cage was down, and, as I raced toward it, the man in the gray coat scrambled in. Even in my terror and excitement I was conscious of an unreasonable, desolate sense of desertion when I saw that. Yet, underneath it all a lingering fragment of common sense told me that father would believe me, by this, safe above; he had told me to go--and I had not obeyed him. Behind me, as I ran, arose a shrill and terrible chorus, a crashing of timbers, yells and shrieks of men, the terrific braying of the Andalusian mules, and above all, a new sound; the mighty voice, the swelling roar of imprisoned waters taking possession of the channels that man had inadvertently prepared for them. I reached the hoisting cage so nearly too late that it had already started on its upward journey, when, seeing me, one of its occupants reached down, caught both my upstretched hands and swung me up to a place by his side. It chanced, providentially, that the cage was at the bottom of the shaft when the inrush of waters came, and it had been held there for a brief, dangerous moment while the men nearest the shaft fled to its protection. It rose slowly upward, not too soon, for in an incredibly short time an inky flood rolled beneath it; rolled beneath, but seemed to keep pace with it as it arose. The water was coming up the shaft. CHAPTER III AT THE MOUTH OF THE SHAFT