It was the site of an effaced and forgotten city; a centre of culture and civilisation which had owed its very existence to this great river, and had declined and fallen when the stream had so mysteriously ceased to flow. The once fertile land had withered, and become a dreary, sunburnt, uninhabitable wilderness.
Ask any marabout from Morocco to far-off Tripoli, and he will declare that for some reason unknown, Allah, before the days of his Prophet, set the mark of his displeasure upon the country known to us as the Ahaggar. It is not, therefore, surprising that the Ouled Slimân, our enemies, should be known throughout the desert as the Children of Eblis.
As, spear in hand, I walked at Hamoud’s side along that vanished fluvial basin, I discussed the probable causes of the sudden failure of that mighty flow. He suggested that its source might by some means have become exhausted; but geographers having ages ago disposed of that point, I explained to him how every theory possible had already been put forward and dismissed. The mysterious forgotten river was still a geographical problem as great as the existence of open water at the poles.
Through two more days we journeyed forward, ever-watchful, yet discerning no sign of our enemies; but at length, coming to a steep bare cliff, once undoubtedly a roaring cataract, we found its granite bed had been worn into ridges two thousand years ago by the action of the torrent. At this point the plateau over which we had journeyed descended sheer and steep on to the plain, of which we commanded an extensive view for many miles. An hour before sundown the sky had suddenly darkened, indicative of an approaching sandstorm, therefore we resolved to remain there the night and retrace our steps next day. Our fears were realised. Shortly before midnight, as we sat together smoking, the unclouded starry sky assumed an extraordinary clearness. The atmosphere was perfectly still, when suddenly in the east a black cloud began to rise with frightful rapidity, and soon covered half the heavens. Presently a strong gust of wind enveloped us with sand, and threw little pebbles as large as peas into our faces. Soon, while we crouched beneath a rock, we were surrounded by a dense cloud of sand, and stood still in impenetrable gloom. The storm was of unusual severity. Our eyes were filled with grit every time we ventured to open them. We did not dare to lie down for fear of being buried. The tempest at last passed, the night quickly grew clear again, and, extricating ourselves from the sand that had drifted high about us, we lay down exhausted to sleep.
Before dawn I rose, and, without disturbing the heavy slumber of my companion, strode forth along the brink of the dried-up cataract to examine more closely the hitherto unexplored spot. The sun-whitened boulders were all worn smooth where the gigantic rush of the waters had whirled past them ere they dashed below into that once fertile plain. And as I went along I presently discovered a place where I could descend the face of the cliff. Without difficulty I at last reached its base, and stepping forward, placed my foot upon soft drifted sand that gave way beneath my tread.
With startling suddenness a strange sound fell upon my ears, deafening me. I felt myself falling, and in clutching frantically at the objects around, struck my head a violent blow. Then all consciousness became blotted out.
How long I remained insensible I do not know. I have an idea that many hours must have elapsed, for when painfully I struggled back to a knowledge of things about me, I found myself enveloped in a darkness blacker than night, my ears being filled by a continuous unceasing roar like thunder. I was chilled to the bone, and on stretching forth my hand, found myself lying upon a mass of soft slime, that splashing over my face had half-suffocated me. With both hands outstretched, I tried to discover into what noisome place I had so suddenly been precipitated. Intently I listened. The roaring was that of some mighty unseen torrent.
Creeping cautiously forward upon my hands and knees, fearing lest I should stumble into any further chasm, I soon came to water flowing swiftly past. Then the truth dawned upon me that I was beside the bank of some unknown subterranean river. Of the extent of that dark cavernous place I could obtain no idea. Thrice I shouted with all my strength, but in that deafening roar my voice was echoless.
With a supplication to Allah to envelop me with the cloak of his protection, I cautiously pursued my way over the stones and slime in the direction the unseen stream was rushing. The incline was steep, and as the air seemed cool and fresh, I felt assured there must be some outlet to the blessed light of day. Yet onward I crept slowly, chilled by the icy mud, until my limbs trembled, and I was compelled to pause and rub them to prevent them becoming benumbed.
Truly mine was an unenvious position. Throughout my life it has been my endeavour to tread those crooked and laborious paths whereby knowledge of hidden mysteries may be gained, therefore I worked on like a mole in the dark, and by diligent industry gained ground considerably. During several hours I pushed my way forward, until at length my hands came into contact with a wall of rock which barred all further passage, although the water lapping it swirled past on its downward course. Eagerly I felt about the rock, searching for some mode of egress, but could find none. The wall of the enormous cavern extended sheer and unbroken for five hundred paces, then turned back in the direction I had already traversed. Thus was a terrible truth forced upon me. I was entombed!
My injured head pained me frightfully, and I must have become weakened by loss of blood. The terrors of that foul, fearsome place, where the deafening roar was unceasing, and the blackness could be felt, overwhelmed me. I groped back to the edge of the roaring torrent exhausted, and sinking, slept.
When I awoke I was amazed to find the cavern illumined by a faint greenish light, just sufficient to enable me to see that the rushing, foaming waters were of great width and volume, and that the cavern whence they came was low, but of vast extent. Then, turning towards the light, I found that it shone up through the water beyond the wall of rock which formed that side of the cave. At first the strange light puzzled me, but I soon ascertained that the subterranean river emptied itself into the open air at that spot, and that the sun shining upon the water as it rushed out of its underground course, reflected the welcome light up to where I stood. The discovery held me breathless. I saw that in such enormous volume did those icy waters sweep down, that the opening in the rock whence they were let free was completely filled. There was, after all, no exit.
At the edge of the boiling torrent I stood calmly contemplating the advisability of plunging in and allowing myself to be swept out into the air. The only thing which deterred me from so doing was the fear that outside the cataract fell down from some dizzy height into a foaming flood below, in which case I must be either battered to death upon the rocks or drowned beneath the descending tons of water. The thought of this terrible fate thrilled me with horror.
Of a sudden I heard above the roar a man’s voice; and startled, turned round, and saw a long boat, shaped something like a canoe, containing two dark figures, being propelled swiftly towards me.
Agape in wonder I stood watching them.
Ere I could realise the truth, they had run their craft up high and dry where I stood, and were beside me, questioning me in some strange, unknown tongue. In that faint green light they looked weird, impish figures. Small of stature, their skins were a lightish yellow; they wore curious necklets and armlets of chased bones, and their loincloths were scaly, like the skin of some fish or serpent. In their hands they both carried long barbed spears. They had been fishing, for their boat was nearly full.
To their rapid questions I could only shake my head, when in an instant the roar of the waters increased, until speech became impossible. Terrified they both, next second, leaped into their boat and dragged me in after them. Their promptitude saved my life, for ere an instant had elapsed our boat became lifted by an enormous inrush, which flooded the whole cavern to a depth of many feet. Our boat rose so near the roof that we were compelled to crouch down to prevent our heads being jammed, and soon I found myself being rowed rapidly along in triumph into the impenetrable darkness. I had escaped death by a hair’s breadth, but what grim adventure was yet in store for me I dreaded to anticipate.
My impish captors bent hard at their paddles, exchanging muttered words, until soon the roaring of the torrent sounded indistinct, and we found ourselves out upon a great subterranean lake of limitless extent. The eyes of my companions, accustomed to that appalling darkness, could discern objects where I could distinguish nothing. As we went forward the current became weaker, and now and then I felt a splashing as a large fish was lifted from the water impaled upon a spear. Yet ever forward we kept on and on, for fully two hours, until suddenly I saw a faint glimmer of grey light upon the wide expanse of black water, and when we neared it I discerned that there was a huge crack in the roof of rock and it was open to the sky, but so great was the distance to the world above, that only a faint glimmer penetrated there.
By its light I distinguished how clear and deep were the waters, and noticed that the fish my companions had caught were of a uniform grey colour, without eyes. In the impenetrable darkness of those subterranean depths the organs of vision, I afterwards ascertained, never developed. The eyes of the two men with me were also strange-looking, set closely together, dark and bead-like.
But we paused not, holding straight upon our way, plunging again into the cavernous blackness, until presently there showed before us a golden shaft of sunlight striking full into the waters, and in a few moments we emerged into an open space green and fertile, surrounded on every side by high rocks, honeycombed with small caves, while the great unknown river itself disappeared beyond into a wide dark tunnel.
Scarcely had we disembarked than the place literally swarmed with the uncanny-looking denizens of this underground realm, who, issuing from their cave-dwellings, eyed me curiously with greatest caution. I had not removed my litham, and they undoubtedly were suspicious of a stranger who veiled his face.
My captors, with much wild gesticulation, explained the circumstances in which they had discovered me, and presently, when I had been thoroughly inspected by all, and my appearance commented upon, my veil was surreptitiously snatched from my pallid face, and I was hurried into one of the small cell-like caverns, and there secured to the rock by a rudely constructed chain. Soon food was brought me, and the inhabitants of the curious unknown country formed a ring near the river bank, and commenced to execute a kind of wild dance, accompanied by fiendish yells, working themselves into a frenzy, like the dancers of the Ouled Naïls. For a long time I watched their weird pantomimic gyrations, when at length my eyes were startled at beholding, in the centre of the circle, a tall man of much paler complexion than my own, dressed in a few dilapidated rags. Once or twice only I caught a glimpse of him, and then I recognised that his face was that of an European, and his dress the tattered remains of a French military uniform. His beard and moustache seemed ashen grey, and upon his haggard countenance, as he stood motionless and statuesque amid the dancers, was a weary look of blank despair. He also was a captive.
The strange-looking, yellow-skinned people of this riparian region at length ceased dancing, and with one accord knelt around him in adoration, worshipping him as though he were an idol. The scene, as they gabbled words in an unknown tongue, was weird and impressive. My fellow-captive did not apparently notice me, therefore, fearing to rouse the ire of this hitherto undiscovered people by shouting, I possessed myself in patience. The curious form of pagan worship at last ended; the unfortunate European was released and allowed to seek his abode, a small hole in the rock close to mine, and the impish-looking men dispersed, leaving me to my own dismal thoughts. Ere long the shadows lengthened as the sun sank behind the high rocks, and dusk crept on. About the open space which served as street, men and women of the curious tribe squatted, smoked, and chattered, while others, entering their boats armed with fishing-spears, paddled off down the subterranean stream in the direction I had come. Night fell, and at last the cave-dwellers slept.
Slumber, however, came not to my wearied eyes, and for many hours I sat thinking over my strange position, my thoughts being suddenly disturbed by a noise as of some one moaning near me. It was the mysterious European.
With slow steps and bent head he passed by, when, in a low clear voice, I accosted him in French.
Startled, he halted, peering towards me; and when I had uttered a few reassuring words, telling him that I was his fellow-captive, he came towards me, looking half-suspiciously into my face, and enquired my name.
I told him who I was, then made a similar enquiry.
“My name is Flatters,” he answered in Arabic. “Thou mayest, perhaps, have heard of me in thy wanderings through the Desert?”
“Flatters!” I cried. “Art thou Colonel Flatters, the lost explorer whom the French have sought these three whole years?”
“The same,” he answered, sighing deeply, his arms crossed over his breast. “For three years I have been held captive in this noisome Land of Sâ.”
His tall dark figure stood out against the starlight, his head bowed in dejection. By this brave explorer’s exploits the whole world had more than once been thrilled. By his intrepidity and ability to withstand the sudden extremes of heat and cold in our Great Desert, the French War Department had been enabled to complete their map of the Saharan plains. It was he who explored all the hitherto unknown region around El Biodh; who discovered and published explanations of the wonderful ruins of Tikbaben; who found the Afeli source; who climbed the mountain of Iraouen, and penetrated the country of the Ennitra, into which even we of the Azjar feared to venture. Twice he traversed the stony Tinghert tableland; but on the third occasion, while in the far south near Lake Tsâd, he suddenly disappeared, and although the French authorities had offered a reward of ten thousand francs to any one who could solve the mystery of his death or capture, and had sent two formidable expeditions across the desert, with a view of obtaining some tidings of him, all efforts had been futile.
Yet he had been here, a prisoner in the hands of these uncanny dwellers beneath the earth’s surface!
“Hast thou made no attempt to escape?” I enquired, as he seated himself wearily upon a ledge of rock near me.
“Yes,” he answered despondently; “but my diaries and geological collections have been lost. All egress from this place is closed. Yon rocks are too sheer and high to be scaled, and the black flood hath risen so that there is neither entrance nor exit.”
Briefly, I told him the manner in which I found myself in that dark cavern with its noisy torrent, and when I had finished he explained the manner in which he had disappeared.
“I set forth from Algiers with five European companions, and after travelling for nine months along unfrequented paths in the inhospitable Ahaggar, found myself at Mount El Aghil alone, all my fellow-travellers having died. Unable to return by the route I had come on account of the fierce hostility of the Kel-Rhela, whose vengeance I had narrowly escaped, I was compelled to push on still southward through the Aïr country, reaching at last, close to the dried-up course of the Igharghar, a large and curious oasis, the earth of which was perfectly black and quite soft, contrasting strangely with the dull red sand of the surrounding desert. The vegetation was luxuriant, water-melons grew in rich profusion, and in exploring it I discovered, to my astonishment, a small but beautiful lake. About the oasis were large rocks, and in one of these I found an opening with curious signs rudely curved at the entrance. They appeared to be the hieroglyphics of some ancient race, and their strange character aroused my curiosity. Unlike any hitherto discovered, they were of huge design, representing men, monstrosities, and animals of unknown species, yet only superficially outlined, apparently with the most inadequate tools. Not only were they at the entrance, but on lighting a torch I found the interior of the cavern completely covered by these grotesque drawings; and it was while engaged in these interesting investigations that I suddenly stumbled into a narrow chasm that had evidently been hidden by dried branches to form a pitfall for the unwary. When I recovered consciousness I, like thyself, found myself captive in the hands of these fierce primitive barbarians of the nether world.”
“But who are they?” I enquired. “I have never heard mention of them before.”
“Nor I,” he answered. “To our world they are as absolutely unknown as this mighty subterranean flood. During my captivity I have managed to learn some words of their tongue. Their gloomy, mysterious region is known to them as Sâ.”
“But the river itself amazes me,” I observed.
“True. Our accidental discoveries have proved an important geographical fact hitherto undreamed-of, namely, that the reason the mighty Igharghar no longer flows to irrigate the desert is because it has found a subterranean channel, and for ages has been still roaring on beneath its ancient bed towards the sea.”
“Whence, in your opinion, cometh this mysterious river?” I enquired.
“From Lake Tsâd, undoubtedly. The fish in its waters, although grey and sightless, because of the perpetual darkness in which they live, are of the same species as those I found in the lake. The strangest part of my adventure is that these people, never having before seen a white man, believe me to be some supernatural visitant, and worship me as Sâ, their principal god.”
Then, while he listened attentively, I told him of the cavern where the river apparently rushed out into the open air, and suggested that, as a desperate and last resource, we might endeavour to escape by plunging into the chilly stream and allowing ourselves to be carried forth into the unknown. On due consideration, however, we agreed that this project was not feasible, on account of the swollen state of the dark flood, and as an alternative resolved to steal one of the canoes and explore the upper reaches of the mysterious underground stream. This decision we followed by immediate action. The explorer, obtaining a roughly fashioned hammer of stone from his own little cave, quickly severed my fetters, and together we crept out across the small deserted grass-plain to where the boats were moored. In one of them we found paddles, torches and spears, and, stepping in, pushed off and shot silently out into the darkness. Ere we had done so, however, we heard a loud ringing shout close to the bank. Our flight had been discovered.
We each seized a paddle and pulled away with all our might against the stream. Quickly we entered the cavern opposite that through which I had been conveyed. The blackness was complete, but we strained every muscle in our efforts to propel forward our frail craft. Soon behind us we heard the wild, fierce yells of our pursuers, and knowing that their eyes, accustomed to that appalling gloom, could discern objects where we of the outer world could detect nothing, we feared lest we might be overtaken. Their angry voices echoed weirdly along the rocky roof, and we could hear the violent splashing of their paddles as they sped along in our wake.
In this mad dash into the unknown realm of perpetual night we shot forward with utter disregard of what dangers lay before. We knew not, from one moment to another, whether we were heading up the great broad river, or whether rowing straight towards the rocky sides of the cavern. So light and flimsy was our craft that the least collision with a piece of jutting rock would have sent us down to depths unfathomable. At that moment we were enveloped by an hundred perils.
To our surprise and profound satisfaction, we at length realised that the voices of our irate pursuers were growing fainter. They had evidently mistaken the direction we had taken, therefore we slowed up, and presently rested, spent and panting.
I could hear the French officer’s hard breathing, but the darkness was so intense that we could not see each other.
“We have unconsciously entered a tributary of the main stream,” he observed, gasping for breath. “Listen, the sounds are receding. At least for the present we are safe. Let us rest.”
Nothing loth, I bent slowly across my paddle, now and then pulling a few strokes to prevent us drifting, and discussing our position in a low voice so that no echo should betray our presence. Thus we remained fully half-an-hour, until both of us had refreshed ourselves, then together we paddled on swiftly, yet full of caution. No glimmer of light penetrated that dispiriting gloom, and we feared to ignite one of our torches. Toiling forward, the perspiration rolling off us in great beads, we still continued pulling against the strong current for several hours, until suddenly we saw before us two large shafts of brilliant light striking down from above into the water. Slowly we approached lest any of the denizens of Sâ should be lurking there; but ere long, as we came nearer, our eyes were dazzled by a sight so amazing that expressions of wonder involuntarily escaped our parched lips.
In the light before us we saw clearly outlined a colossal face with hideous grin, carved from the black rock. It was truly gigantic, marvellously fashioned, with huge ears and an expression absolutely demoniacal, the two shafts of bright light issuing forth from the eyes giving it an expression of intense ferocity. We rested on our paddles beneath it, and looked up aghast.