At sight of this black gulf Charging Buffalo displayed considerable fear, and threw down his pack of supplies with signs of haste. He had provided Zamacona with a good stock of resinous torches and provisions, and had guided him honestly and well; but refused to share in the venture that lay ahead. Zamacona gave him the trinkets he had kept for such an occasion, and obtained his promise to return to the region in a month; afterward shewing the way southward to the Pecos Pueblo villages. A prominent rock on the plain above them was chosen as a meeting-place; the one arriving first to pitch camp until the other should arrive.
In the manuscript Zamacona expressed a wistful wonder as to the Indian’s length of waiting at the rendezvous—for he himself could never keep that tryst. At the last moment Charging Buffalo tried to dissuade him from his plunge into the darkness, but soon saw it was futile, and gestured a stoical farewell. Before lighting his first torch and entering the opening with his ponderous pack, the Spaniard watched the lean form of the Indian scrambling hastily and rather relievedly upward among the trees. It was the cutting of his last link with the world; though he did not know that he was never to see a human being—in the accepted sense of that term— again.
Zamacona felt no immediate premonition of evil upon entering that ominous doorway, though from the first he was surrounded by a bizarre and unwholesome atmosphere. The passage, slightly taller and wider than the aperture, was for many yards a level tunnel of Cyclopean masonry, with heavily worn flagstones under foot, and grotesquely carved granite and sandstone blocks in sides and ceiling. The carvings must have been loathsome and terrible indeed, to judge from Zamacona’s description; according to which most of them revolved around the monstrous beings Yig-and Tulu. They were unlike anything the adventurer had ever seen before, though he added that the native architecture of Mexico came closest to them of all things in the outer world. After some distance the tunnel began to dip abruptly, and irregular natural rock appeared on all sides. The passage seemed only partly artificial, and decorations were limited to occasional cartouches with shocking bas-reliefs.
Following an enormous descent, whose steepness at times produced an acute danger of slipping and tobogganing, the passage became exceedingly uncertain in its direction and variable in its contour. At times it narrowed almost to a slit or grew so low that
stooping and even crawling were necessary, while at other times it broadened out into sizeable caves or chains of caves. Very little human construction, it was plain, had gone into this part of the tunnel; though occasionally a sinister cartouche or hieroglyphic on the wall, or a blocked-up lateral passageway, would remind Zamacona that this was in truth the aeon-forgotten high-road to a primal and unbelievable world of living things.
For three days, as best he could reckon, Pánfilo de Zamacona scrambled down, up, along, and around, but always predominately downward, through this dark region of palaeogean night. Once in a while he heard some secret being of darkness patter or flap out of his way, and on just one occasion he half glimpsed a great, bleached thing that set him trembling. The quality of the air was mostly very tolerable; though foetid zones were now and then met with, while one great cavern of stalactites and stalagmites afforded a depressing dampness. This latter, when Charging Buffalo had come upon it, had quite seriously barred the way; since the limestone deposits of ages had built fresh pillars in the path of the primordial abyss-denizens. The Indian, however, had broken through these; so that Zamacona did not find his course impeded. It was an unconscious comfort to him to reflect that someone else from the outside world had been there before—and the Indian’s careful descriptions had removed the element of surprise and unexpectedness. More—Charging Buffalo’s knowledge of the tunnel had led him to provide so good a torch supply for the journey in and out, that there would be no danger of becoming stranded in darkness. Zamacona camped twice, building a fire whose smoke seemed well taken care of by the natural ventilation.
At what he considered the end of the third day—though his cocksure guesswork chronology is not at any time to be given the easy faith that he gave it—Zamacona encountered the prodigious descent and subsequent prodigious climb which Charging Buffalo had described as the tunnel’s last phase. As at certain earlier points, marks of artificial improvement were here discernible; and several times the steep gradient was eased by a flight of rough-hewn steps. The torch shewed more and more of the monstrous carvings on the walls, and finally the resinous flare seemed mixed with a fainter and more diffusive light as Zamacona climbed up and up after the last downward stairway. At length the ascent ceased, and a level passage of artificial masonry with dark, basaltic blocks led straight ahead. There was no need for a torch now, for all the air was glowing
with a bluish, quasi-electric radiance that flickered like an aurora. It was the strange light of the inner world that the Indian had described—and in another moment Zamacona emerged from the tunnel upon a bleak, rocky hillside which climbed above him to a seething, impenetrable sky of bluish coruscations, and descended dizzily below him to an apparently illimitable plain shrouded in bluish mist.
He had come to the unknown world at last, and from his manuscript it is clear that he viewed the formless landscape as proudly and exaltedly as ever his fellow-countryman Balboa viewed the new-found Pacific from that unforgettable peak in Darien. Charging Buffalo had turned back at this point, driven by fear of something which he would only describe vaguely and evasively as a herd of bad cattle, neither horse nor buffalo, but like the things the mound-spirits rode at night—but Zamacona could not be deterred by any such trifle. Instead of fear, a strange sense of glory filled him; for he had imagination enough to know what it meant to stand alone in an inexplicable nether world whose existence no other white man suspected.
The soil of the great hill that surged upward behind him and spread steeply downward below him was dark grey, rock-strown, without vegetation, and probably basaltic in origin; with an unearthly cast which made him feel like an intruder on an alien planet. The vast distant plain, thousands of feet below, had no features he could distinguish; especially since it appeared to be largely veiled in a curling, bluish vapour. But more than hill or plain or cloud, the bluely luminous, coruscating sky impressed the adventurer with a sense of supreme wonder and mystery. What created this sky within a world he could not tell; though he knew of the northern lights, and had even seen them once or twice. He concluded that this subterraneous light was something vaguely akin to the aurora; a view which moderns may well endorse, though it seems likely that certain phenomena of radio-activity may also enter in.
At Zamacona’s back the mouth of the tunnel he had traversed yawned darkly; defined by a stone doorway very like the one he had entered in the world above, save that it was of greyish-black basalt instead of red sandstone. There were hideous sculptures, still in good preservation and perhaps corresponding to those on the outer portal which time had largely weathered away. The absence of weathering here argued a dry, temperate climate; indeed, the Spaniard already began to note the delightfully spring-like stability
of temperature which marks the air of the north’s interior. On the stone jambs were works proclaiming the bygone presence of hinges, but of any actual door or gate no trace remained. Seating himself for rest and thought, Zamacona lightened his pack by removing an amount of food and torches sufficient to take him back through the tunnel. These he proceeded to cache at the opening, under a cairn hastily formed of the rock fragments which everywhere lay around. Then, readjusting his lightened pack, he commenced his descent toward the distant plain; preparing to invade a region which no living thing of outer earth had penetrated in a century or more, which no white man had ever penetrated, and from which, if legend were to be believed, no organic creature had ever returned sane.
Zamacona strode briskly along down the steep, interminable slope; his progress checked at times by the bad walking that came from loose rock fragments, or by the excessive precipitousness of the grade. The distance of the mist-shrouded plain must have been enormous, for many hours’ walking brought him apparently no closer to it than he had been before. Behind him was always the great hill stretching upward into a bright aerial sea of bluish coruscations. Silence was universal; so that his own footsteps, and the fall of stones that he dislodged, struck on his ears with startling distinctness. It was at what he regarded as about noon that he first saw the abnormal footprints which set him to thinking of Charging Buffalo’s terrible hints, precipitate flight, and strangely abiding terror.
The rock-strown nature of the soil gave few opportunities for tracks of any kind, but at one point a rather level interval had caused the loose detritus to accumulate in a ridge, leaving a considerable area of dark-grey loam absolutely bare. Here, in a rambling confusion indicating a large herd aimlessly wandering, Zamacona found the abnormal prints. It is to be regretted that he could not describe them more exactly, but the manuscript displayed far more vague fear than accurate observation. Just what it was that so frightened the Spaniard can only be inferred from his later hints regarding the beasts. He referred to the prints as ‘not hooves, nor hands, nor feet, nor precisely paws—nor so large as to cause alarm on that account’. Just why or how long ago the things had been there, was not easy to guess. There was no vegetation visible, hence grazing was out of the question; but of course if the beasts were carnivorous they might well have been hunting smaller animals, whose tracks their own would tend to obliterate.
Glancing backward from this plateau to the heights above, Zamacona thought he detected traces of a great winding road which had once led from the tunnel downward to the plain. One could get the impression of this former highway only from a broad panoramic view, since a trickle of loose rock fragments had long ago obscured it; but the adventurer felt none the less certain that it had existed. It had not, probably, been an elaborately paved trunk route; for the small tunnel it reached seemed scarcely like a main avenue to the outer world. In choosing a straight path of descent Zamacona had not followed its curving course, though he must have crossed it once or twice. With his attention now called to it, he looked ahead to see if he could trace it downward toward the plain; and this he finally thought he could do. He resolved to investigate its surface when next he crossed it, and perhaps to pursue its line for the rest of the way if he could distinguish it.
Having resumed his journey, Zamacona came some time later upon what he thought was a bend of the ancient road. There were signs of grading and of some primal attempt at rock-surfacing, but not enough was left to make the route worth following. While rummaging about in the soil with his sword, the Spaniard turned up something that glittered in the eternal blue daylight, and was thrilled at beholding a kind of coin or medal of a dark, unknown, lustrous metal, with hideous designs on each side. It was utterly and bafflingly alien to him, and from his description I have no doubt but that it was a duplicate of the talisman given me by Grey Eagle almost four centuries afterward. Pocketing it after a long and curious examination, he strode onward; finally pitching camp at an hour which he guessed to be the evening of the outer world.
The next day Zamacona rose early and resumed his descent through this blue-litten world of mist and desolation and preternatural silence. As he advanced, he at last became able to distinguish a few objects on the distant plain below—trees, bushes, rocks, and a small river that came into view from the right and curved forward at a point to the left of his contemplated course. This river seemed to be spanned by a bridge connected with the descending roadway, and with care the explorer could trace the route of the road beyond it in a straight line over the plain. Finally he even thought he could detect towns scattered along the rectilinear ribbon; towns whose left-hand edges reached the river and sometimes crossed it. Where such crossings occurred, he saw as he descended, there were always signs of bridges either ruined or surviving.
He was now in the midst of a sparse grassy vegetation, and saw that below him the growth became thicker and thicker. The road was easier to define now, since its surface discouraged the grass which the looser soil supported. Rock fragments were less frequent, and the barren upward vista behind him looked bleak and forbidding in contrast to his present milieu.
It was on this day that he saw the blurred mass moving over the distant plain. Since his first sight of the sinister footprints he had met with no more of these, but something about that slowly and deliberately moving mass peculiarly sickened him. Nothing but a herd of grazing animals could move just like that, and after seeing the footprints he did not wish to meet the things which had made them. Still, the moving mass was not near the road—and his curiosity and greed for fabled gold were great. Besides, who could really judge things from vague, jumbled footprints or from the panic-twisted hints of an ignorant Indian?
In straining his eyes to view the moving mass Zamacona became aware of several other interesting things. One was that certain parts of the now unmistakable towns glittered oddly in the misty blue light. Another was that, besides the towns, several similarly glittering structures of a more isolated sort were scattered here and there along the road and over the plain. They seemed to be embowered in clumps of vegetation, and those off the road had small avenues leading to the highway. No smoke or other signs of life could be discerned about any of the towns or buildings. Finally Zamacona saw that the plain was not infinite in extent, though the half-concealing blue mists had hitherto made it seem so. It was bounded in the remote distance by a range of low hills, toward a gap in which the river and roadway seemed to lead. All this—especially the glittering of certain pinnacles in the towns—had become very vivid when Zamacona pitched his second camp amidst the endless blue day. He likewise noticed the flocks of high-soaring birds, whose nature he could not clearly make out.