After two more quarries the inhabited part of Inquanok seemed to end, and the road narrowed to a steeply rising yak-path among forbidding black cliffs. Always on the right towered the gaunt and distant peaks, and as Carter climbed farther and farther into this untraversed realm he found it grew darker and colder. Soon he perceived that there were no prints of feet or hooves on the black path beneath, and realised that he was indeed come into strange and deserted ways of elder time. Once in a while a raven would croak far overhead, and now and then a flapping behind some vast rock would make him think uncomfortably of the rumoured Shantak-bird. But in the main he was alone with his shaggy steed, and it troubled him to observe that this excellent yak became more and more reluctant to advance, and more and more disposed to snort affrightedly at any small noise along the route.
The path now contracted between sable and glistening walls, and began to display an even greater steepness than before. It was a bad footing, and the yak often slipped on the stony fragments strewn thickly about. In two hours Carter saw ahead a definite crest, beyond which was nothing but dull grey sky, and blessed the prospect of a level or downward course. To reach this crest, however, was no easy task; for the way had grown nearly perpendicular, and was perilous with loose black gravel and small stones. Eventually Carter dismounted and led his dubious yak; pulling very hard when the animal balked or stumbled, and keeping his own footing as best he might. Then suddenly he came to the top and saw beyond, and gasped at what he saw.
The path indeed led straight ahead and slightly down, with the same lines of high natural walls as before; but on the left hand there opened out a monstrous space, vast acres in extent, where some archaic power had riven and rent the native cliffs of onyx in the form of a giant's quarry. Far back into the solid precipice ran that cyclopean gouge, and deep down within earth's bowels its lower delvings yawned. It was no quarry of man, and the concave sides were scarred with great squares, yards wide, which told of the size of the blocks once hewn by nameless hands and chisels. High over its jagged rim huge ravens flapped and croaked, and vague whirrings in the unseen depths told of bats or urhags or less mentionable presences haunting the endless blackness. There Carter stood in the narrow way amidst the twilight with the rocky path sloping down before him; tall onyx cliffs on his right that led on as far as he could see and tall cliffs on the left chopped off just ahead to make that terrible and unearthly quarry.
All at once the yak uttered a cry and burst from his control, leaping past him and darting on in a panic till it vanished down the narrow slope toward the north. Stones kicked by its flying hooves fell over the brink of the quarry and lost themselves in the dark without any sound of striking bottom; but Carter ignored the perils of that scanty path as he raced breathlessly after the flying steed. Soon the left-behind cliffs resumed their course, making the way once more a narrow lane; and still the traveller leaped on after the yak whose great wide prints told of its desperate flight.
Once he thought he heard the hoofbeats of the frightened beast, and doubled his speed from this encouragement. He was covering miles, and little by little the way was broadening in front till he knew he must soon emerge on the cold and dreaded desert to the north. The gaunt grey flanks of the distant impassable peaks were again visible above the right-hand crags, and ahead were the rocks and boulders of an open space which was clearly a foretaste of the dark arid limitless plain. And once more those hoofbeats sounded in his ears, plainer than before, but this time giving terror instead of encouragement because he realised that they were not the frightened hoofbeats of his fleeing yak. The beats were ruthless and purposeful, and they were behind him.
Carter's pursuit of the yak became now a flight from an unseen thing, for though he dared not glance over his shoulder he felt that the presence behind him could be nothing wholesome or mentionable. His yak must have heard or felt it first, and he did not like to ask himself whether it had followed him from the haunts of men or had floundered up out of that black quarry pit. Meanwhile the cliffs had been left behind, so that the oncoming night fell over a great waste of sand and spectral rocks wherein all paths were lost. He could not see the hoofprints of his yak, but always from behind him there came that detestable clopping; mingled now and then with what he fancied were titanic flappings and whirrings. That he was losing ground seemed unhappily clear to him, and he knew he was hopelessly lost in this broken and blasted desert of meaningless rocks and untravelled sands. Only those remote and impassable peaks on the right gave him any sense of direction, and even they were less clear as the grey twilight waned and the sickly phosphorescence of the clouds took its place.
Then dim and misty in the darkling north before him he glimpsed a terrible thing. He had thought it for some moments a range of black mountains, but now he saw it was something more. The phosphorescence of the brooding clouds shewed it plainly, and even silhouetted parts of it as vapours glowed behind. How distant it was he could not tell, but it must have been very far. It was thousands of feet high, stretching in a great concave arc from the grey impassable peaks to the unimagined westward spaces, and had once indeed been a ridge of mighty onyx hills. But now these hills were hills no more, for some hand greater than man's had touched them. Silent they squatted there atop the world like wolves or ghouls, crowned with clouds and mists and guarding the secrets of the north forever. All in a great half circle they squatted, those dog-like mountains carven into monstrous watching statues, and their right hands were raised in menace against mankind.
It was only the flickering light of the clouds that made their mitred double heads seem to move, but as Carter stumbled on he saw arise from their shadowy caps great forms whose motions were no delusion. Winged and whirring, those forms grew larger each moment, and the traveller knew his stumbling was at an end. They were not any birds or bats known elsewhere on earth or in dreamland, for they were larger than elephants and had heads like a horse's. Carter knew that they must be the Shantak-birds of ill rumour, and wondered no more what evil guardians and nameless sentinels made men avoid the boreal rock desert. And as he stopped in final resignation he dared at last to look behind him, where indeed was trotting the squat slant-eyed trader of evil legend, grinning astride a lean yak and leading on a noxious horde of leering Shantaks to whose wings still clung the rime and nitre of the nether pits.
Trapped though he was by fabulous and hippocephalic winged nightmares that pressed around in great unholy circles, Randolph Carter did not lose consciousness. Lofty and horrible those titan gargoyles towered above him, while the slant-eyed merchant leaped down from his yak and stood grinning before the captive. Then the man motioned Carter to mount one of the repugnant Shantaks, helping him up as his judgement struggled with his loathing. It was hard work ascending, for the Shantak-bird has scales instead of feathers, and those scales are very slippery. Once he was seated, the slant-eyed man hopped up behind him, leaving the lean yak to be led away northward toward the ring of carven mountains by one of the incredible bird colossi.
There now followed a hideous whirl through frigid space, endlessly up and eastward toward the gaunt grey flanks of those impassable mountains beyond which Leng was said to be. Far above the clouds they flew, till at last there lay beneath them those fabled summits which the folk of Inquanok have never seen, and which lie always in high vortices of gleaming mist. Carter beheld them very plainly as they passed below, and saw upon their topmost peaks strange caves which made him think of those on Ngranek; but he did not question his captor about these things when he noticed that both the man and the horse-headed Shantak appeared oddly fearful of them, hurrying past nervously and shewing great tension until they were left far in the rear.