The next day I was up and around the camp, but took no part in the excavations. Seeing that I could not stop the work, I decided to return home as soon as possible for the sake of my nerves, and made my son promise to fly me in the plane to Perth – a thousand miles to the southwest – as soon as he had surveyed the region I wished let alone.
If, I reflected, the thing I had seen was still visible, I might decide to attempt a specific warning even at the cost of ridicule. It was just conceivable that the miners who knew the local folklore might back me up. Humouring me, my son made the survey that very afternoon, flying over all the terrain my walk could possibly have covered. Yet nothing of what I had found remained in sight.
It was the case of the anomalous basalt block all over again – the shifting sand had wiped out every trace. For an instant I half regretted having lost a certain awesome object in my stark fright – but now I know that the loss was merciful. I can still believe my whole experience an illusion – especially if, as I devoutly hope, that hellish abyss is never found.
Wingate took me to Perth on July 20th, though declining to abandon the expedition and return home. He stayed with me until the 25th, when the steamer for Liverpool sailed. Now, in the cabin of the Empress, I am pondering long and frantically upon the entire matter, and have decided that my son at least must be informed. It shall rest with him whether to diffuse the matter more widely.
In order to meet any eventuality I have prepared this summary of my background – as already known in a scattered way to others – and will now tell as briefly as possible what seemed to happen during my absence from the camp that hideous night.
Nerves on edge, and whipped into a kind of perverse eagerness by that inexplicable, dread-mingled, mnemonic urge toward the northeast, I plodded on beneath the evil, burning moon. Here and there I saw, half shrouded by sand, those primal Cyclopean blocks left from nameless and forgotten aeons.
The incalculable age and brooding horror of this monstrous waste began to oppress me as never before, and I could not keep from thinking of my maddening dreams, of the frightful legends which lay behind them, and of the present fears of natives and miners concerning the desert and its carven stones.
And yet I plodded on as if to some eldritch rendezvous – more and more assailed by bewildering fancies, compulsions, and pseudo-memories. I thought of some of the possible contours of the lines of stones as seen by my son from the air, and wondered why they seemed at once so ominous and so familiar. Something was fumbling and rattling at the latch of my recollection, while another unknown force sought to keep the portal barred.
The night was windless, and the pallid sand curved upward and downward like frozen waves of the sea. I had no goal, but somehow ploughed along as if with fate-bound assurance. My dreams welled up into the waking world, so that each sand-embedded megalith seemed part of endless rooms and corridors of pre-human masonry, carved and hieroglyphed with symbols that I knew too well from years of custom as a captive mind of the Great Race.
At moments I fancied I saw those omniscient, conical horrors moving about at their accustomed tasks, and I feared to look down lest I find myself one with them in aspect. Yet all the while I saw the sand-covered blocks as well as the rooms and corridors; the evil, burning moon as well as the lamps of luminous crystal; the endless desert as well as the waving ferns beyond the windows. I was awake and dreaming at the same time.
I do not know how long or how far – or indeed, in just what direction – I had walked when I first spied the heap of blocks bared by the day's wind. It was the largest group in one place that I had seen so far, and so sharply did it impress me that the visions of fabulous aeons faded suddenly away.
Again there were only the desert and the evil moon and the shards of an unguessed past. I drew close and paused, and cast the added light of my electric torch over the tumbled pile. A hillock had blown away, leaving a low, irregularly round mass of megaliths and smaller fragments some forty feet across and from two to eight feet high.
From the very outset I realized that there was some utterly unprecedented quality about those stones. Not only was the mere number of them quite without parallel, but something in the sandworn traces of design arrested me as I scanned them under the mingled beams of the moon and my torch.
Not that any one differed essentially from the earlier specimens we had found. It was something subtler than that. The impression did not come when I looked at one block alone, but only when I ran my eye over several almost simultaneously.
Then, at last, the truth dawned upon me. The curvilinear patterns on many of those blocks were closely related – parts of one vast decorative conception. For the first time in this aeon-shaken waste I had come upon a mass of masonry in its old position – tumbled and fragmentary, it is true, but none the less existing in a very definite sense.
Mounting at a low place, I clambered laboriously over the heap; here and there clearing away the sand with my fingers, and constantly striving to interpret varieties of size, shape, and style, and relationships of design.
After a while I could vaguely guess at the nature of the bygone structure, and at the designs which had once stretched over the vast surfaces of the primal masonry. The perfect identity of the whole with some of my dream-glimpses appalled and unnerved me.
This was once a Cyclopean corridor thirty feet tall, paved with octagonal blocks and solidly vaulted overhead. There would have been rooms opening off on the right, and at the farther end one of those strange inclined planes would have wound down to still lower depths.
I started violently as these conceptions occurred to me, for there was more in them than the blocks themselves had supplied. How did I know that this level should have been far underground? How did I know that the plane leading upward should have been behind me? How did I know that the long subterrene passage to the Square of Pillars ought to lie on the left one level above me?
How did I know that the room of machines and the rightward-leading tunnel to the central archives ought to lie two levels below? How did I know that there would be one of those horrible, metal-banded trap-doors at the very bottom four levels down? Bewildered by this intrusion from the dream-world, I found myself shaking and bathed in a cold perspiration.
Then, as a last, intolerable touch, I felt that faint, insidious stream of cool air trickling upward from a depressed place near the center of the huge heap. Instantly, as once before, my visions faded, and I saw again only the evil moonlight, the brooding desert, and the spreading tumulus of palaeogean masonry. Something real and tangible, yet fraught with infinite suggestions of nighted mystery, now confronted me. For that stream of air could argue but one thing – a hidden gulf of great size beneath the disordered blocks on the surface.
My first thought was of the sinister blackfellow legends of vast underground huts among the megaliths where horrors happen and great winds are born. Then thoughts of my own dreams came back, and I felt dim pseudo-memories tugging at my mind. What manner of place lay below me? What primal, inconceivable source of age-old myth-cycles and haunting nightmares might I be on the brink of uncovering?
It was only for a moment that I hesitated, for more than curiosity and scientific zeal was driving me on and working against my growing fear.
I seemed to move almost automatically, as if in the clutch of some compelling fate. Pocketing my torch, and struggling with a strength that I had not thought I possessed, I wrenched aside first one titan fragment of stone and then another, till there welled up a strong draught whose dampness contrasted oddly with the desert's dry air. A black rift began to yawn, and at length – when I had pushed away every fragment small enough to budge – the leprous moonlight blazed on an aperture of ample width to admit me.