I heard Leo give a cry, and then suddenly saw him in mid air springing up and out like a chamois. It was a splendid leap that he took under the influence of his terror and despair, clearing the horrible gulf as if it were nothing, and, landing well on to the rocky point, he threw himself upon his face, to prevent his pitching off into the depths. I felt the spur above me shake beneath the shock of his impact, and as it did so I saw the huge rocking-stone, that had been violently depressed by him as he sprang, fly back when relieved of his weight till, for the first time during all these centuries, it got beyond its balance, fell with a most awful crash right into the rocky chamber which had once served the philosopher Noot for a hermitage, and, I have no doubt, for ever sealed the passage that leads to the Place of Life with some hundreds of tons of rock.
All this happened in a second, and curiously enough, notwithstanding my terrible position, I noted it involuntarily, as it were. I even remember thinking that no human being would go down that dread path again.
Next instant I felt Leo seize me by the right wrist with both hands. By lying flat on the point of rock he could just reach me.
"You must let go and swing yourself clear," he said in a calm and collected voice, "and then I will try and pull you up, or we will both go together. Are you ready?"
By way of answer I let go, first with my left hand and then with the right, and, as a consequence, swayed out clear of the overshadowing rock, my weight hanging upon Leo's arms. It was a dreadful moment. He was a very powerful man, I knew, but would his strength be equal to lifting me up till I could get a hold on the top of the spur, when owing to his position he had so little purchase?
For a few seconds I swung to and fro, while he gathered himself for the effort, and then I heard his sinews cracking above me, and felt myself lifted up as though I were a little child, till I got my left arm round the rock, and my chest was resting on it. The rest was easy; in two or three more seconds I was up, and we were lying panting side by side, trembling like leaves, and with the cold perspiration of terror pouring from our skins.
And then, as before, the light went out like a lamp.