I must have stood there for a long while, gaping and staring like any yokel who beholds a marvel beyond his comprehension. I still breathed the unearthly odor, but the music had grown fainter with the slackening of the wheel of light, and had fallen to a sub-auditory sighing—the suspicion of a murmur far away in some undiscovered world. Implicitly, though perhaps illogically, I connected the sound and the scent with that unexplained luminance. Whether the wheel was just beyond the junipers, on the craggy hill-top, or a billion miles away in astronomic space, I could not decide; and it did not even occur to me that I could climb the hill and ascertain this particular for myself.
My main emotion was a sort of half-mystic wonder, a dreamy curiosity that did not prompt me to action. Idly I waited, with no clear awareness of the passing of time, till the wheel of rays began once more to revolve slowly. It swiftened, and presently I could no longer distinguish the separate beams. All I could see was a whirling disk, like a moon that spun dizzily but maintained the same position relative to the rocks and junipers. Then, without apparent recession, it grew dim and faded on the sapphire darkness. I heard no longer the remote and flute-like murmur; and the perfume ebbed from the valley like an out-going tide, leaving but elusive wraiths of its unknown spicery.
My sense of wonder sharpened with the passing of these phenomena; but I could form no conclusion as to their origin. My knowledge of natural science, which was far from extensive, seemed to afford no plausible clue. I felt, with a wild thrilling, half-fearful, half-exultant, that the thing I had witnessed was not to be found in the catalogues compiled by human observers.
The visitation, whatever it was, had left me in a state of profound nervous excitement. Sleep, when it came, was intermittent; and the problematic light, perfume, and melody recurred again and again with my dreams with a singular vividness, as if they had stamped themselves upon my brain with more than the force of normal sensory impressions.
I awoke at earliest dawn, filled with a well-nigh feverish conviction that I must visit the eastern hill immediately and learn if any tangible sign had been left by the agency of the turning beams. After a hasty and half-eaten breakfast, I made the ascent, armed with my drawing-pad and pencils. It was a short climb among overbeetling boulders, sturdy tamaracks, and dwarf oaks that took the form of low-growing bushes.
The hill-top itself comprised an area of several hundred yards, roughly elliptic. It fell gently away toward the east, and ended on two sides in sheerly riven cliffs and jagged scarps. There were patches of soil amid the enormous granite folds and out-croppings; but these patches were bare, except for a few alpine flowers and grasses; and the place was given mainly to a number of gnarled and massive junipers, which had rooted themselves by preference in the solid rock. From the beginning, it had been one of my favorite haunts. I had made many sketches of the mightily mortised junipers, some of which, I verily believe, were more ancient than the famed sequoias, or the cedars of Lebanon.
Surveying the scene with eager eyes in the cloudless morning light, I saw nothing untoward at first. As usual, there were deer-tracks in the basins of friable soil; but apart from these, and my own former footprints, there was no token of any visitor. Somewhat disappointed, I began to think that the luminous, turning wheel had been far-off in space, beyond the hill.
Then, wandering on toward the lower levels of the crest, I found, in a sheltered spot, the thing that had previously been hidden from my view by the trees and out-croppings.
It was a cairn of granite fragments—but a cairn such as I had never beheld in all my mountain explorations. Built in the unmistakable form of a star with five blunt angles, it rose waist-high from the middle of a plot of intersifting loam and sand. About it grew a few plants of mountain phlox. On one side were the charred remnants of a tree that had been destroyed by lightning in recent years. On two other sides, forming a right angle, were high walls to which several junipers clung like coiling dragons with tenacious claws, embedded in the riven rock.
On the summit of the strange pile, in the center, I perceived a pale and coldly shining stone with star-like points that duplicated and followed the five angles. This stone, I thought, had been shaped by artificial means. I did not recognize its material; and I felt sure that it was nothing native to the region.
I felt the elation of a discoverer, deeming that I had stumbled on the proof of some alien mystery. The cairn, whatever its purpose, whoever its builders, had been reared during the night; for I had visited this very spot on the previous afternoon, a little before sunset, and would have seen the structure if it had been there at that time.
Somehow, I dismissed immediately and forever all idea of human agency. There occurred to me the bizarre thought that voyagers from some foreign world had paused on the hill and had left that enigmatic pile as a sign of their visit. In this manner, the queer nocturnal manifestations were accounted for, even if not fully explained.
Arrested by the weird enigma of it all, I had paused on the verge of the loamy basin, at a distance of perhaps twelve feet from the cairn itself. Now, my brain on fire with fantastical surmise, I stepped forward to examine the cairn more closely. To my utter dumbfoundment, it appeared to recede before me, preserving the same interval, as I went toward it. Pace after pace I took, but the ground flowed forward beneath me like a treadmill; my moving feet descended in their former tracks; and I was unable to make the least progress toward the goal that was apparently so near at hand! My movements were in no sense impeded, but I felt a growing giddiness, that soon verged upon nausea.
My disconcertment can more readily be imagined than expressed. It seemed obvious that either I or nature had gone suddenly mad. The thing was absurd, impossible—it belied the most elementary laws of dimension. By some incalculable means, a new and arcanic property had been introduced into the space about the cairn.
To test further the presence of this hypothetical property, I abandoned my efforts at direct approach, and began to circle the basin, resuming the attempt from other angles. The pile, I found, was equally unapproachable from all sides: at a distance of twelve feet, the soil began its uncanny treadmill movement when I tried to encroach upon it. The cairn, to all intents and purposes, might have been a million miles away, in the gulf between the worlds!
After a while, I gave up my weird and futile experiments, and sat down beneath one of the overhanging junipers. The mystery maddened me, it induced a sort of mental vertigo as I pondered it. But also, it brought into the familiar order of things the exhilaration of a novel and perhaps supernatural element. It spoke of the veiled infinitudes I had vainly longed to explore; it goaded my feverish fantasy to ungovernable flights.
Recalling myself from such conjectures, I studied with sedulous care the stelliform pile and the soil around it. Surely the beings who had built it would have left their footprints. However, there were no discernible marks of any kind; and I could learn nothing from the arrangement of the stones, which had been piled with impeccable neatness and symmetry. I was still baffled by the five-pointed object on the summit, for I could recall no terrene mineral that resembled its substance very closely. It was too opaque for moonstone or crystal, too lucid and brilliant for alabaster.
At whiles, as I continued to sit there, I was visited by an evanescent whiff of the spicy perfume that had flooded my cabin on the previous night. It came and went like a dying phantom, and I was never quite sure of its presence.
At length I roused myself and made a thorough search of the hill-top, to learn if any other trace had been left by the problematic visitors. In one of the sandy patches of soil, near the northern verge, I saw a curious indentation, like the slender, three-toed footmark of some impossibly gigantic bird. Close at hand was the small hollow from which a loose fragment of stone, doubtless employed in the building of the cairn, had been removed. The three-pointed mark was very faint, as if the maker had trodden there with an airy lightness. But apart from the finding of this doubtful vestige, my search was wholly without result.