It became evident to the scientists that their proposed explorations might be accompanied by grave bodily dangers. One of the planes was immediately sent to England for a supply of gas masks, oxygen, and complete suits of an insulative material designed to protect against everything then known to science in the form of harmful radio-activity.
As soon as the planes returned, bringing the requisite supplies, the journey into the Sahara was resumed. Following at an altitude of one thousand feet the northern caravan route toward Insalah and Ghadames, the scientists soon began to penetrate the Juf desert, amid whose golden-yellow dunes the affected area was said to lie.
An odd spectacle now presented itself to them. Far-off on the horizon was a low-lying mass of clouds or vapors—a thing almost without precedent in that dry, rainless region. These clouds or vapors were of a pearly-grey color, and they covered not only hundreds of leagues of the rolling sand, or what had once been sand, but also seemed to encroach upon the rocky, weather-worn terrain to east of the Juf. Nothing could be seen of the geological changes that had taken place, till the airplanes had approached within a few miles of the vapor-mass. Then the exploring party had a glimpse of the vari-colored soil and minerals described by the natives, now dimly discernible through the writhing fumes that still arose from them.
Before landing, the scientists flew slowly above the vapors to determine their extent and density. They found that the mass was circular in form and was at least a hundred miles in diameter. It constituted a level and uniform floor, dazzlingly bright in the sunshine, and with no breaks or variations anywhere.
After crossing and circumnavigating the whole cloud-mass, a landing was made near the southern verge, and the expedition proceeded to encamp. The day was still new, since they had made an early start; and Lapham and the others were eager to begin their investigations without delay. Putting on their insulative suits and equipping themselves with the gas-masks and oxygen-tanks, the whole party set out forthwith.
They had not gone far when they encountered the fine sand or dust of which the caravan-members had spoken. They sank to the waist in this sand at every step, but its inconceivable lightness made their progress not so difficult as it would normally have been. At every footfall, at every touch or movement, the fine powder soared in a huge cloud, which, as they had occasion to observe, took hours to settle itself again. None of them had ever seen such dust before, and the chemists in the party could scarcely wait to analyze it.
At last, after much wandering and floundering in the dust-cloud, through which they could see nothing, Lapham and his companions drew themselves out on a margin of the strange violet soil. The contrast of this wet, steaming clay with the gulfs of atom-like powder that surrounded it was so inexplicable, so utterly amazing as to baffle and dumbfound all conjecture. The substance was unearthly in its bizarreness, and the heat that emanated from it was almost beyond endurance. The scientists had sweltered in their heavy air-tight suits while crossing the zone of dust, but now they were subjected to actual suffering.
At every step their astonishment grew, for the dim landscape beneath the vapors was such as no human eye had even seen before. Gigantic ledges of crystallized rock-forms arose in the foreground, and about the crystals there was something, even apart from their curious black, blue, red and dark-green coloration, which served to differentiate them from anything classified by geologists. They were prodigious in size, and had innumerable facets and a look of geometrical complexity foreign to all normal rocks. There was a sinister vitality in their aspect, too, and the tale of the natives, who purported to have seen them grow and swell, became almost comprehensible. Somehow, they resembled living organisms as much as minerals. Everywhere, also, were outcroppings of the white and iridescent metals that had been described.
As the party advanced, the ledges grew larger, and towered overhead in cliffs and precipices and crags, among which the explorers found a tortuous, winding way. The crags were horned and beetling, and weird beyond imagination. It was like a scene in some other world; and nothing to which the scientists came in the course of their wanderings was in any manner suggestive of the familiar Terra Firma.
After groping their way through narrow rifts and along the rim of fantastic scarps where all foothold was precarious, they emerged amid the crags, on the shelving shore of a lake of blackish-green water, whose full extent was indeterminate. Lapham, who was ahead of the others, half-lost in the coils of the rising vapors, cried out suddenly, and when his companions overtook him, they found him stooping above a queer plant with an etiolated fungus-like stalk and broad, serrate leaves of a carnal crimson, mottled with grey blotches. Around it, the pinkish lips of younger plants were protruding from the soil, and they seemed to wax visibly beneath the astounded gaze of the explorers.
“What on earth is it?” cried Lapham.
“As far as I can see, it isn’t anything that could legitimately exist on earth,” rejoined Sylvester, one of the chemists, who had made a side-line of botany. They all gathered about the queer plant and examined it minutely. The leaves and stalks were extremely fibrous in their texture and were full of deep pores like those of coral. But when Lapham tried to break off a portion, it proved to be very tough and rubbery, and the use of a knife was necessitated before the branch could be severed. The plant writhed and twisted like a living creature at the touch of the knife, and when the operation was finally accomplished, a juice that bore a startling resemblance to blood in its color and consistency, began to exude slowly. The severed section was placed in a knapsack for future analysis.
Now the scientists proceeded toward the margin of the lake. Here they found some plant-growths of a different type, suggesting calamites, or giant reeds. These plants were twenty feet tall and were divided into a dozen segments with heavy, swollen-looking joints. They had no leaves, and their hues varied from a leaden purple to a leprous white with green shadowings and veinings. Although there was no wind, all of them were swaying a little, with a sound like the hissing of serpents. As Lapham and his confreres came closer, they saw that the reeds were covered with lip-like formations that recalled the suckers of an octopus.
Sylvester was now in advance of the others. As he neared the foremost plant, the thing swayed suddenly forward with all the suppleness and celerity of a python and encircled the chemist in a series of constricting coils. Sylvester screamed in terror as the coils tightened about him, and the others ran instantly to his aid, though dumbfounded and well-nigh stupefied by the strangeness of the happening. Several of them carried clasp-knives, and these were at once requisitioned in effecting his release. Lapham and two of the chemists began to hack and saw at the horrible coils, while the reed continued its constriction about the limbs and body of the helpless man. The plant was amazingly strong and resistant, and Lapham’s knife-blade broke before he had sawed half through the section upon which he was engaged. His companions, however, were more successful, and at length the diabolical growth was severed in two places, one of which was not far from the root. But the coils still clung around their victim, who had gone suddenly pale and limp, and who now fell in a dead faint as his companions finished their task. It was found that some of the sucker-like formations had penetrated his insulative suit and were actually embedded in his flesh. Slowly, in squirming segments, the coils were cut away; but nothing could be done at present with the suckers, for want of the proper surgical instruments; and it was obviously imperative that Sylvester should be taken back to camp as quickly as possible. Carrying the still unconscious man among them by turns, the explorers retraced their steps amid the crags and ledges of many-colored crystals, along the perilous rim of steaming cliffs and gulfs, and found their way through the zone of atomic dust, till they re-emerged, altogether exhausted and frightfully shaken, on the shore of the natural desert. In spite of their urgent haste, however, they took with them some specimens of the crystals, of the white and iridescent metals and the violet soil, as well as parts of the python-like reed, for future examination; and they greatly deplored their inability to secure also some of the water in the blackish-green lake. After the chemist’s experience, no one would have dared to venture among the fringing reeds along its shore.