I drew out my torch and cast a brilliant beam into the opening. Below me was a chaos of tumbled masonry, sloping roughly down toward the north at an angle of about forty-five degrees, and evidently the result of some bygone collapse from above.
Between its surface and the ground level was a gulf of impenetrable blackness at whose upper edge were signs of gigantic, stress-heaved vaulting. At this point, it appeared, the desert's sands lay directly upon a floor of some titan structure of earth's youth – how preserved through aeons of geologic convulsion I could not then and cannot now even attempt to guess.
In retrospect, the barest idea of a sudden, lone descent into such a doubtful abyss – and at a time when one's whereabouts were unknown to any living soul – seems like the utter apex of insanity. Perhaps it was – yet that night I embarked without hesitancy upon such a descent.
Again there was manifest that lure and driving of fatality which had all along seemed to direct my course. With torch flashing intermittently to save the battery, I commenced a mad scramble down the sinister, Cyclopean incline below the opening – sometimes facing forward as I found good hand – and foot-holds, and at other times turning to face the heap of megaliths as I clung and fumbled more precariously.
In two directions beside me distant walls of carven, crumbling masonry loomed dimly under the direct beams of my torch. Ahead, however, was only unbroken darkness.
I kept no track of time during my downward scramble. So seething with baffling hints and images was my mind that all objective matters seemed withdrawn into incalculable distances. Physical sensation was dead, and even fear remained as a wraith-like, inactive gargoyle leering impotently at me.
Eventually, I reached a level floor strewn with fallen blocks, shapeless fragments of stone, and sand and detritus of every kind. On either side – perhaps thirty feet apart – rose massive walls culminating in huge groinings. That they were carved I could just discern, but the nature of the carvings was beyond my perception.
What held me the most was the vaulting overhead. The beam from my torch could not reach the roof, but the lower parts of the monstrous arches stood out distinctly. And so perfect was their identity with what I had seen in countless dreams of the elder world, that I trembled actively for the first time.
Behind and high above, a faint luminous blur told of the distant moonlit world outside. Some vague shred of caution warned me that I should not let it out of my sight, lest I have no guide for my return.
I now advanced toward the wall at my left, where the traces of carving were plainest. The littered floor was nearly as hard to traverse as the downward heap had been, but I managed to pick my difficult way.
At one place I heaved aside some blocks and locked away the detritus to see what the pavement was like, and shuddered at the utter, fateful familiarity of the great octagonal stones whose buckled surface still held roughly together.
Reaching a convenient distance from the wall, I cast the searchlight slowly and carefully over its worn remnants of carving. Some bygone influx of water seemed to have acted on the sandstone surface, while there were curious incrustations which I could not explain.
In places the masonry was very loose and distorted, and I wondered how many aeons more this primal, hidden edifice could keep its remaining traces of form amidst earth's heavings.
But it was the carvings themselves that excited me most. Despite their time-crumbled state, they were relatively easy to trace at close range; and the complete, intimate familiarity of every detail almost stunned my imagination.
That the major attributes of this hoary masonry should be familiar, was not beyond normal credibility.
Powerfully impressing the weavers of certain myths, they had become embodied in a stream of cryptic lore which, somehow, coming to my notice during the amnesic period, had evoked vivid images in my subconscious mind.
But how could I explain the exact and minute fashion in which each line and spiral of these strange designs tallied with what I had dreamed for more than a score of years? What obscure, forgotten iconography could have reproduced each subtle shading and nuance which so persistently, exactly, and unvaryingly besieged my sleeping vision night after night?
For this was no chance or remote resemblance. Definitely and absolutely, the millennially ancient, aeon-hidden corridor in which I stood was the original of something I knew in sleep as intimately as I knew my own house in Crane Street, Arkham. True, my dreams shewed the place in its undecayed prime; but the identity was no less real on that account. I was wholly and horribly oriented.
The particular structure I was in was known to me. Known, too, was its place in that terrible elder city of dreams. That I could visit unerringly any point in that structure or in that city which had escaped the changes and devastations of uncounted ages, I realized with hideous and instinctive certainty. What in heaven's name could all this mean? How had I come to know what I knew? And what awful reality could lie behind those antique tales of the beings who had dwelt in this labyrinth of primordial stone?
Words can convey only fractionally the welter of dread and bewilderment which ate at my spirit. I knew this place. I knew what lay before me, and what had lain overhead before the myriad towering stories had fallen to dust and debris and the desert. No need now, I thought with a shudder, to keep that faint blur of moonlight in view.
I was torn betwixt a longing to flee and a feverish mixture of burning curiosity and driving fatality. What had happened to this monstrous megalopolis of old in the millions of years since the time of my dreams? Of the subterrene mazes which had underlain the city and linked all the titan towers, how much had still survived the writhings of earth's crust?
Had I come upon a whole buried world of unholy archaism? Could I still find the house of the writing master, and the tower where S'gg'ha, the captive mind from the star-headed vegetable carnivores of Antarctica , had chiselled certain pictures on the blank spaces of the walls?
Would the passage at the second level down, to the hall of the alien minds, be still unchoked and traversable? In that hall the captive mind of an incredible entity – a half-plastic denizen of the hollow interior of an unknown trans-Plutonian planet eighteen million years in the future – had kept a certain thing which it had modelled from clay.
I shut my eyes and put my hand to my head in a vain, pitiful effort to drive these insane dream-fragments from my consciousness. Then, for the first time, I felt acutely the coolness, motion, and dampness of the surrounding air. Shuddering, I realized that a vast chain of aeon-dead black gulfs must indeed be yawning somewhere beyond and below me.
I thought of the frightful chambers and corridors and inclines as I recalled them from my dreams. Would the way to the central archives still be open? Again that driving fatality tugged insistently at my brain as I recalled the awesome records that once lay cased in those rectangular vaults of rustless metal.
There, said the dreams and legends, had reposed the whole history, past and future, of the cosmic space-time continuum – written by captive minds from every orb and every age in the solar system. Madness, of course – but had I not now stumbled into a nighted world as mad as I?
I thought of the locked metal shelves, and of the curious knob twistings needed to open each one. My own came vividly into my consciousness. How often had I gone through that intricate routine of varied turns and pressures in the terrestrial vertebrate section on the lowest level! Every detail was fresh and familiar.
If there were such a vault as I had dreamed of, I could open it in a moment. It was then that madness took me utterly. An instant later, and I was leaping and stumbling over the rocky debris toward the well-remembered incline to the depths below.