I heard the sound of a scuffle in the next cave. Then my fingers sank into loose rock and earth in the side of the cave. In an instant I realized why I had been unable to find the opening while I had been lightly feeling the surface of the walls—Dian had blocked up the hole she had made lest it arouse suspicion and lead to an early discovery of Juag’s escape.

Plunging my weight against the crumbling mass, I sent it crashing into the adjoining cavern. With it came I, David, Emperor of Pellucidar. I doubt if any other potentate in a world’s history ever made a more undignified entrance. I landed head first on all fours, but I came quickly and was on my feet before the man in the dark guessed what had happened.

He saw me, though, when I arose and, sensing that no friend came thus precipitately, turned to meet me even as I charged him. I had my stone knife in my hand, and he had his. In the darkness of the cave there was little opportunity for a display of science, though even at that I venture to say that we fought a very pretty duel.

Before I came to Pellucidar I do not recall that I ever had seen a stone knife, and I am sure that I never fought with a knife of any description; but now I do not have to take my hat off to any of them when it comes to wielding that primitive yet wicked weapon.

I could just see Dian in the darkness, but I knew that she could not see my features or recognize me; and I enjoyed in anticipation, even while I was fighting for her life and mine, her dear joy when she should discover that it was I who was her deliverer.

My opponent was large, but he also was active and no mean knife-man. He caught me once fairly in the shoulder—I carry the scar yet, and shall carry it to the grave. And then he did a foolish thing, for as I leaped back to gain a second in which to calm the shock of the wound he rushed after me and tried to clinch. He rather neglected his knife for the moment in his greater desire to get his hands on me. Seeing the opening, I swung my left fist fairly to the point of his jaw.

Down he went. Before ever he could scramble up again I was on him and had buried my knife in his heart. Then I stood up—and there was Dian facing me and peering at me through the dense gloom.

“You are not Juag!” she exclaimed. “Who are you?”

I took a step toward her, my arms outstretched.

“It is I, Dian,” I said. “It is David.”