He had covered but a short distance from the forest when I beheld the first of his pursuers—a Sagoth, one of those grim and terrible gorilla-men who guard the mighty Mahars in their buried cities, faring forth from time to time upon slave-raiding or punitive expeditions against the human race of Pellucidar, of whom the dominant race of the inner world think as we think of the bison or the wild sheep of our own world. Close behind the foremost Sagoth came others until a full dozen raced, shouting after the terror-stricken old man. They would be upon him shortly, that was plain. One of them was rapidly overhauling him, his back-thrown spear-arm testifying to his purpose. And then, quite with the suddenness of an unexpected blow, I realized a past familiarity with the gait and carriage of the fugitive. Simultaneously there swept over me the staggering fact that the old man was—PERRY! That he was about to die before my very eyes with no hope that I could reach him in time to avert the awful catastrophe—for to me it meant a real catastrophe! Perry was my best friend. Dian, of course, I looked upon as more than friend. She was my mate—a part of me. I had entirely forgotten the rifle in my hand and the revolvers at my belt; one does not readily synchronize his thoughts with the stone age and the twentieth century simultaneously. Now from past habit I still thought in the stone age, and in my thoughts of the stone age there were no thoughts of firearms. The fellow was almost upon Perry when the feel of the gun in my hand awoke me from the lethargy of terror that had gripped me. From behind my boulder I threw up the heavy express rifle—a mighty engine of destruction that might bring down a cave bear or a mammoth at a single shot—and let drive at the Sagoth’s broad, hairy breast. At the sound of the shot he stopped stock-still. His spear dropped from his hand. Then he lunged forward upon his face. The effect upon the others was little less remarkable. Perry alone could have possibly guessed the meaning of the loud report or explained its connection with the sudden collapse of the Sagoth. The other gorilla-men halted for but an instant. Then with renewed shrieks of rage they sprang forward to finish Perry. At the same time I stepped from behind my boulder, drawing one of my revolvers that I might conserve the more precious ammunition of the express rifle. Quickly I fired again with the lesser weapon. Then it was that all eyes were directed toward me. Another Sagoth fell to the bullet from the revolver; but it did not stop his companions. They were out for revenge as well as blood now, and they meant to have both. As I ran forward toward Perry I fired four more shots, dropping three of our antagonists. Then at last the remaining seven wavered. It was too much for them, this roaring death that leaped, invisible, upon them from a great distance.