The things once rearing and dwelling in this frightful masonry in the age of dinosaurs were not indeed dinosaurs, but far worse. Mere dinosaurs were new and almost brainless objects – but the builders of the city were wise and old, and had left certain traces in rocks even then laid down well nigh a thousand million years – rocks laid down before the true life of earth had advanced beyond plastic groups of cells – rocks laid down before the true life of earth had existed at all. They were the makers and enslavers of that life, and above all doubt the originals of the fiendish elder myths which things like the Pnakotic Manuscripts and the Necronomicon affrightedly hint about. They were the great "Old Ones" that had filtered down from the stars when earth was young – the beings whose substance an alien evolution had shaped, and whose powers were such as this planet had never bred. And to think that only the day before Danforth and I had actually looked upon fragments of their millennially fossilized substance – and that poor Lake and his party had seen their complete outlines – It is of course impossible for me to relate in proper order the stages by which we picked up what we know of that monstrous chapter of prehuman life. After the first shock of the certain revelation, we had to pause a while to recuperate, and it was fully three o'clock before we got started on our actual tour of systematic research. The sculptures in the building we entered were of relatively late date – perhaps two million years ago-as checked up by geological, biological, and astronomical features – and embodied an art which would be called decadent in comparison with that of specimens we found in older buildings after crossing bridges under the glacial sheet. One edifice hewn from the solid rock seemed to go back forty or possibly even fifty million years – to the lower Eocene or upper Cretaceous – and contained bas-reliefs of an artistry surpassing anything else, with one tremendous exception, that we encountered. That was, we have since agreed, the oldest domestic structure we traversed.

Were it not for the support of those flashlights soon to be made public, I would refrain from telling what I found and inferred, lest I be confined as a madman. Of course, the infinitely early parts of the patchwork tale – representing the preterrestrial life of the star-headed beings on other planets, in other galaxies, and in other universes – can readily be interpreted as the fantastic mythology of those beings themselves; yet such parts sometimes involved designs and diagrams so uncannily close to the latest findings of mathematics and astrophysics that I scarcely know what to think. Let others judge when they see the photographs I shall publish.

Naturally, no one set of carvings which we encountered told more than a fraction of any connected story, nor did we even begin to come upon the various stages of that story in their proper order. Some of the vast rooms were independent units so far as their designs were concerned, whilst in other cases a continuous chronicle would be carried through a series of rooms and corridors. The best of the maps and diagrams were on the walls of a frightful abyss below even the ancient ground level – a cavern perhaps two hundred feet square and sixty feet high, which had almost undoubtedly been an educational center of some sort. There were many provoking repetitions of the same material in different rooms and buildings, since certain chapters of experience, and certain summaries or phases of racial history, had evidently been favorites with different decorators or dwellers. Sometimes, though, variant versions of the same theme proved useful in settling debatable points and filling up gaps.

I still wonder that we deduced so much in the short time at our disposal. Of course, we even now have only the barest outline – and much of that was obtained later on from a study of the photographs and sketches we made. It may be the effect of this later study – the revived memories and vague impressions acting in conjunction with his general sensitiveness and with that final supposed horror-glimpse whose essence he will not reveal even to me – which has been the immediate source of Danforth's present breakdown. But it had to be; for we could not issue our warning intelligently without the fullest possible information, and the issuance of that warning is a prime necessity. Certain lingering influences in that unknown antarctic world of disordered time and alien natural law make it imperative that further exploration be discouraged.

VII

The full story, so far as deciphered, will eventually appear in an official bulletin of Miskatonic University . Here I shall sketch only the salient highlights in a formless, rambling way. Myth or otherwise, the sculptures told of the coming of those star-headed things to the nascent, lifeless earth out of cosmic space – their coming, and the coming of many other alien entities such as at certain times embark upon spatial pioneering. They seemed able to traverse the interstellar ether on their vast membranous wings – thus oddly confirming some curious hill folklore long ago told me by an antiquarian colleague. They had lived under the sea a good deal, building fantastic cities and fighting terrific battles with nameless adversaries by means of intricate devices employing unknown principles of energy. Evidently their scientific and mechanical knowledge far surpassed man's today, though they made use of its more widespread and elaborate forms only when obliged to. Some of the sculptures suggested that they had passed through a stage of mechanized life on other planets, but had receded upon finding its effects emotionally unsatisfying. Their preternatural toughness of organization and simplicity of natural wants made them peculiarly able to live on a high plane without the more specialized fruits of artificial manufacture, and even without garments, except for occasional protection against the elements.

It was under the sea, at first for food and later for other purposes, that they first created earth life – using available substances according to long-known methods. The more elaborate experiments came after the annihilation of various cosmic enemies. They had done the same thing on other planets, having manufactured not only necessary foods, but certain multicellular protoplasmic masses capable of molding their tissues into all sorts of temporary organs under hypnotic influence and thereby forming ideal slaves to perform the heavy work of the community. These viscous masses were without doubt what Abdul Alhazred whispered about as the "Shoggoths" in his frightful Necronomicon, though even that mad Arab had not hinted that any existed on earth except in the dreams of those who had chewed a certain alkaloidal herb. When the star-headed Old Ones on this planet had synthesized their simple food forms and bred a good supply of Shoggoths, they allowed other cell groups to develop into other forms of animal and vegetable life for sundry purposes, extirpating any whose presence became troublesome.

With the aid of the Shoggoths, whose expansions could be made to lift prodigious weights, the small, low cities under the sea grew to vast and imposing labyrinths of stone not unlike those which later rose on land. Indeed, the highly adaptable Old Ones had lived much on land in other parts of the universe, and probably retained many traditions of land construction. As we studied the architecture of all these sculptured palaeogean cities, including that whose aeon-dead corridors we were even then traversing, we were impressed by a curious coincidence which we have not yet tried to explain, even to ourselves. The tops of the buildings, which in the actual city around us had, of course, been weathered into shapeless ruins ages ago, were clearly displayed in the bas-reliefs, and showed vast clusters of needle-like spires, delicate finials on certain cone and pyramid apexes, and tiers of thin, horizontal scalloped disks capping cylindrical shafts. This was exactly what we had seen in that monstrous and portentous mirage, cast by a dead city whence such skyline features had been absent for thousands and tens of thousands of years, which loomed on our ignorant eyes across the unfathomed mountains of madness as we first approached poor Lake's ill-fated camp.