Before those vengeful Shapes; we could not stand for a moment. We hurled ourselves with a mad precipitation down the shadowed steps of the giant stairs. Polder and the guide were a little ahead of me, to the left hand, and I saw them in that baleful twilight on the verge of a deep chasm, which, in our ascent, had compelled us to much circumambulation. I saw them leap together--and yet I swear that they did not fall into the chasm: for one of the Shapes was upon them whirling and stooping, even as they sprang. There was a blasphemous, unthinkable fusion as of forms beheld in delirium: for an instant the two men were like vapors that swelled and swirled, towering high as the thing that had caught them; and the thing itself was a misty Janus, with two heads and bodies melting, no longer human, into its unearthly column.... * * * * * After that, I remember nothing more, except the sense of vertiginous falling. By some miracle I must have reached the edge of the chasm and flung myself into its depths without being overtaken as the others had been. How I escaped the pursuit of those cloudy Guardians is forevermore an enigma. Perhaps, for some inscrutable reason of their own, they permitted me to go. When I returned to awareness, stars were peering down upon me like chill incurious eyes between black and jagged lips of rock. The air had turned sharp with the coldness of nightfall in a mountain land. My body ached with a hundred bruises and my right forearm was limp and useless when I tried to raise myself. A dark mist of horror stifled my thoughts. Struggling to my feet with pain-racked effort, I called aloud, though I knew that none would answer me. Then, striking match after match, I searched the chasm and found myself, as I had expected, alone. Nowhere was there any trace of my companions: they had vanished utterly--as clouds vanish. Somehow, by night, with a broken arm, I must have climbed from the steep fissure, I must have made my way down the frightful mountainside and out of that namelessly haunted and guarded land. I remember that the sky was clear, that the stars were undimmed by any semblance of cloud; and that somewhere in the valley I found one of our llamas, still laden with its stock of provisions.... Plainly I was not pursued by the Guardians. Perhaps they were concerned only with the warding of that mysterious primal city from human intrusion. Never shall I learn the secret of those ruinous walls and crumbling keeps, nor the fate of my companions. But still, through my nightly dreams and diurnal visions, the dark Shapes move with the tumult and thunder of a thousand storms; and my soul is crushed into the earth with the burden of their imminence; and They pass over me with the speed and vastness of vengeful gods; and I hear Their voices calling like clarions in the sky, with ominous, world-shaking syllables that the ear can never seize. The End