In the end it seems to have been the neighbouring abyss which received the greatest colonisation. This was partly due, no doubt, to the traditional sacredness of this special region, but may have been more conclusively determined by the opportunities it gave for continuing the use of the great temples on the honeycombed mountains, and for retaining the vast land city as a place of summer residence and base of communication with various mines. The linkage of old and new abodes was made more effective by means of several gradings and improvements along the connecting routes, including the chiselling of numerous direct tunnels from the ancient metropolis to the black abyss - sharply down-pointing tunnels whose mouths we carefully drew, according to our most thoughtful estimates, on the guide map we were compiling. It was obvious that at least two of these tunnels lay within a reasonable exploring distance of where we were - both being on the mountainward edge of the city, one less than a quarter of a mile toward the ancient river course, and the other perhaps twice that distance in the opposite direction.

  The abyss, it seems, had shelving shores of dry land at certain places, but the Old Ones built their new city under water - no doubt because of its greater certainty of uniform warmth. The depth of the hidden sea appears to have been very great, so that the earth’s internal heat could ensure its habitability for an indefinite period. The beings seem to have had no trouble in adapting themselves to part-time - and eventually, of course, whole-time - residence under water, since they had never allowed their gill systems to atrophy. There were many sculptures which showed how they had always frequently visited their submarine kinsfolk elsewhere, and how they had habitually bathed on the deep bottom of their great river. The darkness of inner earth could likewise have been no deterrent to a race accustomed to long antarctic nights.

  Decadent though their style undoubtedly was, these latest carvings had a truly epic quality where they told of the building of the new city in the cavern sea. The Old Ones had gone about it scientifically - quarrying insoluble rocks from the heart of the honeycombed mountains, and employing expert workers from the nearest submarine city to perform the construction according to the best methods. These workers brought with them all that was necessary to establish the new venture - Shoggoth tissue from which to breed stone lifters and subsequent beasts of burden for the cavern city, and other protoplasmic matter to mould into phosphorescent organisms for lighting purposes.

  At last a mighty metropolis rose on the bottom of that Stygian sea, its architecture much like that of the city above, and its workmanship displaying relatively little decadence because of the precise mathematical element inherent in building operations. The newly bred Shoggoths grew to enormous size and singular intelligence, and were represented as taking and executing orders with marvellous quickness. They seemed to converse with the Old Ones by mimicking their voices - a sort of musical piping over a wide range, if poor Lake’s dissection had indicated aright - and to work more from spoken commands than from hypnotic suggestions as in earlier times. They were, however, kept in admirable control. The phosphorescent organisms supplied light with vast effectiveness, and doubtless atoned for the loss of the familiar polar auroras of the outer-world night.

  Art and decoration were pursued, though of course with a certain decadence. The Old Ones seemed to realise this falling off themselves, and in many cases anticipated the policy of Constantine the Great by transplanting especially fine blocks of ancient carving from their land city, just as the emperor, in a similar age of decline, stripped Greece and Asia of their finest art to give his new Byzantine capital greater splendours than its own people could create. That the transfer of sculptured blocks had not been more extensive was doubtless owing to the fact that the land city was not at first wholly abandoned. By the time total abandonment did occur - and it surely must have occurred before the polar Pleistocene was far advanced - the Old Ones had perhaps become satisfied with their decadent art - or had ceased to recognise the superior merit of the older carvings. At any rate, the aeon-silent ruins around us had certainly undergone no wholesale sculptural denudation, though all the best separate statues, like other movables, had been taken away.

  The decadent cartouches and dadoes telling this story were, as I have said, the latest we could find in our limited search. They left us with a picture of the Old Ones shuttling back and forth betwixt the land city in summer and the sea-cavern city in winter, and sometimes trading with the sea-bottom cities off the antarctic coast. By this time the ultimate doom of the land city must have been recognised, for the sculptures showed many signs of the cold’s malign encroachments. Vegetation was declining, and the terrible snows of the winter no longer melted completely even in midsummer. The saurian live stock were nearly all dead, and the mammals were standing it none too well. To keep on with the work of the upper world it had become necessary to adapt some of the amorphous and curiously cold-resistant Shoggoths to land life - a thing the Old Ones had formerly been reluctant to do. The great river was now lifeless, and the upper sea had lost most of its denizens except the seals and whales. All the birds had flown away, save only the great, grotesque penguins.

  What had happened afterward we could only guess. How long had the new sea-cavern city survived? Was it still down there, a stony corpse in eternal blackness? Had the subterranean waters frozen at last? To what fate had the ocean-bottom cities of the outer world been delivered? Had any of the Old Ones shifted north ahead of the creeping ice cap? Existing geology shows no trace of their presence. Had the frightful Mi-Go been still a menace in the outer land world of the north? Could one be sure of what might or might not linger, even to this day, in the lightless and unplumbed abysses of earth’s deepest waters? Those things had seemingly been able to withstand any amount of pressure - and men of the sea have fished up curious objects at times. And has the killer-whale theory really explained the savage and mysterious scars on antarctic seals noticed a generation ago by Borchgrevingk?

  The specimens found by poor Lake did not enter into these guesses, for their geologic setting proved them to have lived at what must have been a very early date in the land city’s history. They were, according to their location, certainly not less than thirty million years old, and we reflected that in their day the sea-cavern city, and indeed the cavern itself, had had no existence. They would have remembered an older scene, with lush Tertiary vegetation everywhere, a younger land city of flourishing arts around them, and a great river sweeping northward along the base of the mighty mountains toward a faraway tropic ocean.

  And yet we could not help thinking about these specimens - especially about the eight perfect ones that were missing from Lake’s hideously ravaged camp. There was something abnormal about that whole business - the strange things we had tried so hard to lay to somebody’s madness - those frightful graves - the amount and nature of the missing material - Gedney - the unearthly toughness of those archaic monstrosities, and the queer vital freaks the sculptures now showed the race to have - Danforth and I had seen a good deal in the last few hours, and were prepared to believe and keep silent about many appalling and incredible secrets of primal nature.

  9

  I have said that our study of the decadent sculptures brought about a change in our immediate objective. This, of course, had to do with the chiselled avenues to the black inner world, of whose existence we had not known before, but which we were now eager to find and traverse. From the evident scale of the carvings we deduced that a steeply descending walk of about a mile through either of the neighbouring tunnels would bring us to the brink of the dizzy, sunless cliffs about the great abyss; down whose sides paths, improved by the Old Ones, led to the rocky shore of the hidden and nighted ocean. To behold this fabulous gulf in stark reality was a lure which seemed impossible of resistance once we knew of the thing - yet we realised we must begin the quest at once if we expected to include it in our present trip.

  It was now 8 P.M., and we did not have enough battery replacements to let our torches burn on foreve
r. We had done so much studying and copying below the glacial level that our battery supply had had at least five hours of nearly continuous use, and despite the special dry cell formula would obviously be good for only about four more - though by keeping one torch unused, except for especially interesting or difficult places, we might manage to eke out a safe margin beyond that. It would not do to be without a light in these Cyclopean catacombs, hence in order to make the abyss trip we must give up all further mural deciphering. Of course we intended to revisit the place for days and perhaps weeks of intensive study and photography - curiosity having long ago got the better of horror - but just now we must hasten.

  Our supply of trail-blazing paper was far from unlimited, and we were reluctant to sacrifice spare notebooks or sketching paper to augment it, but we did let one large note book go. If worse came to worst we could resort to rock chipping - and of course it would be possible, even in case of really lost direction, to work up to full daylight by one channel or another if granted sufficient time for plentiful trial and error. So at last we set off eagerly in the indicated direction of the nearest tunnel.

  According to the carvings from which we had made our map, the desired tunnel mouth could not be much more than a quarter of a mile from where we stood; the intervening space showing solid-looking buildings quite likely to be penetrable still at a sub-glacial level. The opening itself would be in the basement - on the angle nearest the foothills - of a vast five-pointed structure of evidently public and perhaps ceremonial nature, which we tried to identify from our aerial survey of the ruins.

  No such structure came to our minds as we recalled our flight, hence we concluded that its upper parts had been greatly damaged, or that it had been totally shattered in an ice rift we had noticed. In the latter case the tunnel would probably turn out to be choked, so that we would have to try the next nearest one - the one less than a mile to the north. The intervening river course prevented our trying any of the more southern tunnels on this trip; and indeed, if both of the neighbouring ones were choked it was doubtful whether our batteries would warrant an attempt on the next northerly one - about a mile beyond our second choice.

  As we threaded our dim way through the labyrinth with the aid of map and compass - traversing rooms and corridors in every stage of ruin or preservation, clambering up ramps crossing upper floors and bridges and clambering down again, encountering choked doorways and piles of debris, hastening now and then along finely preserved and uncannily immaculate stretches, taking false leads and retracing our way (in such cases removing the blind paper trail we had left) and once in a while striking the bottom of an open shaft through which daylight poured or trickled down - we were repeatedly tantalised by the sculptured walls along our route. Many must have told tales of immense historical importance, and only the prospect of later visits reconciled us to the need of passing them by. As it was, we slowed down once in a while and turned on our second torch. If we had had more films we would certainly have paused briefly to photograph certain bas-reliefs, but time-consuming hand-copying was clearly out of the question.

  I come now once more to a place where the temptation to hesitate, or to hint rather than state, is very strong. It is necessary, however, to reveal the rest in order to justify my course in discouraging further exploration. We had wormed our way very close to the computed site of the tunnel’s mouth - having crossed a second-story bridge to what seemed plainly the tip of a pointed wall, and descended to a ruinous corridor especially rich in decadently elaborate and apparently ritualistic sculptures of late workmanship - when, shortly before 8:30 P.M. Danforth’s keen young nostrils gave us the first hint of something unusual. If we had had a dog with us, I suppose we would have been warned before. At first we could not precisely say what was wrong with the formerly crystal-pure air, but after a few seconds our memories reacted only too definitely. Let me try to state the thing without flinching. There was an odour - and that odour was vaguely, subtly, and unmistakably akin to what had nauseated us upon opening the insane grave of the horror poor Lake had dissected.

  Of course the revelation was not as clearly cut at the time as it sounds now. There were several conceivable explanations, and we did a good deal of indecisive whispering. Most important of all, we did not retreat without further investigation; for having come this far, we were loath to be baulked by anything short of certain disaster. Anyway, what we must have suspected was altogether too wild to believe. Such things did not happen in any normal world. It was probably sheer irrational instinct which made us dim our single torch - tempted no longer by the decadent and sinister sculptures that leered menacingly from the oppressive walls - and which softened our progress to a cautious tiptoeing and crawling over the increasingly littered floor and heaps of debris.

  Danforth’s eyes as well as nose proved better than mine, for it was likewise he who first noticed the queer aspect of the debris after we had passed many half-choked arches leading to chambers and corridors on the ground level. It did not look quite as it ought after countless thousands of years of desertion, and when we cautiously turned on more light we saw that a kind of swath seemed to have been lately tracked through it. The irregular nature of the litter precluded any definite marks, but in the smoother places there were suggestions of the dragging of heavy objects. Once we thought there was a hint of parallel tracks as if of runners. This was what made us pause again.

  It was during that pause that we caught - simultaneously this time - the other odour ahead. Paradoxically, it was both a less frightful and a more frightful odour - less frightful intrinsically, but infinitely appalling in this place under the known circumstances - unless, of course, Godney - for the odour was the plain and familiar one of common petrol - every-day gasoline.

  Our motivation after that is something I will leave to psychologists. We knew now that some terrible extension of the camp horrors must have crawled into this nighted burial place of the aeons, hence could not doubt any longer the existence of nameless conditions - present or at least recent just ahead. Yet in the end we did let sheer burning curiosity - or anxiety - or autohypnotism - or vague thoughts of responsibility toward Gedney - or what not - drive us on. Danforth whispered again of the print he thought he had seen at the alley turning in the ruins above; and of the faint musical piping - potentially of tremendous significance in the light of Lake’s dissection report, despite its close resemblance to the cave-mouth echoes of the windy peaks - which he thought he had shortly afterward half heard from unknown depths below. I, in my turn, whispered of how the camp was left - of what had disappeared, and of how the madness of a lone survivor might have conceived the inconceivable - a wild trip across the monstrous mountains and a descent into the unknown, primal masonry—

  But we could not convince each other, or even ourselves, of anything definite. We had turned off all light as we stood still, and vaguely noticed that a trace of deeply filtered upper day kept the blackness from being absolute. Having automatically begun to move ahead, we guided ourselves by occasional flashes from our torch. The disturbed debris formed an impression we could not shake off, and the smell of gasoline grew stronger. More and more ruin met our eyes and hampered our feet, until very soon we saw that the forward way was about to cease. We had been all too correct in our pessimistic guess about that rift glimpsed from the air. Our tunnel quest was a blind one, and we were not even going to be able to reach the basement out of which the abyssward aperture opened.

  The torch, flashing over the grotesquely carved walls of the blocked corridor in which we stood, showed several doorways in various states of obstruction; and from one of them the gasoline odour - quite submerging that other hint of odour - came with especial distinctness. As we looked more steadily, we saw that beyond a doubt there had been a slight and recent clearing away of debris from that particular opening. Whatever the lurking horror might be, we believed the direct avenue toward it was now plainly manifest. I do not think anyone will wonder that we waited an appreciable time bef
ore making any further motion.

  And yet, when we did venture inside that black arch, our first impression was one of anticlimax. For admist the littered expanse of that sculptured Crypt - a perfect cube with sides of about twenty feet - there remained no recent object of instantly discernible size; so that we looked instinctively, though in vain, for a farther doorway. In another moment, however, Danforth’s sharp vision had descried a place where the floor debris had been disturbed; and we turned on both torches full strength. Though what we saw in that light was actually simple and trifling, I am none the less reluctant to tell of it because of what it implied. It was a rough levelling of the debris, upon which several small objects lay carelessly scattered, and at one corner of which a considerable amount of gasoline must have been spilled lately enough to leave a strong odour even at this extreme superplateau altitude. In other words, it could not be other than a sort of camp - a camp made by questing beings who, like us, had been turned back by the unexpectedly choked way to the abyss.

  Let me be plain. The scattered objects were, so far as substance was concerned, all from Lake’s camp; and consisted of tin cans as queerly opened as those we had seen at that ravaged place, many spent matches, three illustrated books more or less curiously smudged, an empty ink bottle with its pictorial and instructional carton, a broken fountain pen, some oddly snipped fragments of fur and tent cloth, a used electric battery with circular of directions, a folder that came with our type of tent heater, and a sprinkling of crumpled papers. It was all bad enough but when we smoothed out the papers and looked at what was on them we felt we had come to the worst. We had found certain inexplicably blotted papers at the camp which might have prepared us, yet the effect of the sight down there in the prehuman vaults of a nightmare city was almost too much to bear.