Too much cast down to speak, we stumbled down the dark tunnel and made our way back to the camp.
One incident occurred, however, before we left the gorge, which is of importance in view of what came afterwards.
We had gathered in a little group at the bottom of the chasm, some forty feet beneath the mouth of the cave, when a huge rock rolled suddenly downwards--and shot past us with tremendous force. It was the narrowest escape for one or all of us. We could not ourselves see whence the rock had come, but our half-breed servants, who were still at the opening of the cave, said that it had flown past them, and must therefore have fallen from the summit. Looking upwards, we could see no sign of movement above us amidst the green jungle which topped the cliff. There could be little doubt, however, that the stone was aimed at us, so the incident surely pointed to humanity--and malevolent humanity--upon the plateau.
We withdrew hurriedly from the chasm, our minds full of this new development and its bearing upon our plans. The situation was difficult enough before, but if the obstructions of Nature were increased by the deliberate opposition of man, then our case was indeed a hopeless one. And yet, as we looked up at that beautiful fringe of verdure only a few hundreds of feet above our heads, there was not one of us who could conceive the idea of returning to London until we had explored it to its depths.
On discussing the situation, we determined that our best course was to continue to coast round the plateau in the hope of finding some other means of reaching the top. The line of cliffs, which had decreased considerably in height, had already begun to trend from west to north, and if we could take this as representing the arc of a circle, the whole circ.u.mference could not be very great. At the worst, then, we should be back in a few days at our starting-point.
We made a march that day which totaled some two-and-twenty miles, without any change in our prospects. I may mention that our aneroid shows us that in the continual incline which we have ascended since we abandoned our canoes we have risen to no less than three thousand feet above sea-level. Hence there is a considerable change both in the temperature and in the vegetation. We have shaken off some of that horrible insect life which is the bane of tropical travel. A few palms still survive, and many tree-ferns, but the Amazonian trees have been all left behind. It was pleasant to see the convolvulus, the pa.s.sion-flower, and the begonia, all reminding me of home, here among these inhospitable rocks. There was a red begonia just the same color as one that is kept in a pot in the window of a certain villa in Streatham--but I am drifting into private reminiscence.
That night--I am still speaking of the first day of our circ.u.mnavigation of the plateau--a great experience awaited us, and one which for ever set at rest any doubt which we could have had as to the wonders so near us.
You will realize as you read it, my dear Mr. McArdle, and possibly for the first time that the paper has not sent me on a wild-goose chase, and that there is inconceivably fine copy waiting for the world whenever we have the Professor"s leave to make use of it. I shall not dare to publish these articles unless I can bring back my proofs to England, or I shall be hailed as the journalistic Munchausen of all time. I have no doubt that you feel the same way yourself, and that you would not care to stake the whole credit of the Gazette upon this adventure until we can meet the chorus of criticism and scepticism which such articles must of necessity elicit. So this wonderful incident, which would make such a headline for the old paper, must still wait its turn in the editorial drawer.
And yet it was all over in a flash, and there was no sequel to it, save in our own convictions.
What occurred was this. Lord John had shot an ajouti--which is a small, pig-like animal--and, half of it having been given to the Indians, we were cooking the other half upon our fire. There is a chill in the air after dark, and we had all drawn close to the blaze.
The night was moonless, but there were some stars, and one could see for a little distance across the plain. Well, suddenly out of the darkness, out of the night, there swooped something with a swish like an aeroplane. The whole group of us were covered for an instant by a canopy of leathery wings, and I had a momentary vision of a long, snake-like neck, a fierce, red, greedy eye, and a great snapping beak, filled, to my amazement, with little, gleaming teeth. The next instant it was gone--and so was our dinner. A huge black shadow, twenty feet across, skimmed up into the air; for an instant the monster wings blotted out the stars, and then it vanished over the brow of the cliff above us. We all sat in amazed silence round the fire, like the heroes of Virgil when the Harpies came down upon them. It was Summerlee who was the first to speak.
"Professor Challenger," said he, in a solemn voice, which quavered with emotion, "I owe you an apology. Sir, I am very much in the wrong, and I beg that you will forget what is past."
It was handsomely said, and the two men for the first time shook hands.
So much we have gained by this clear vision of our first pterodactyl.
It was worth a stolen supper to bring two such men together.
But if prehistoric life existed upon the plateau it was not superabundant, for we had no further glimpse of it during the next three days. During this time we traversed a barren and forbidding country, which alternated between stony desert and desolate marshes full of many wild-fowl, upon the north and east of the cliffs. From that direction the place is really inaccessible, and, were it not for a hardish ledge which runs at the very base of the precipice, we should have had to turn back. Many times we were up to our waists in the slime and blubber of an old, semi-tropical swamp. To make matters worse, the place seemed to be a favorite breeding-place of the Jaracaca snake, the most venomous and aggressive in South America. Again and again these horrible creatures came writhing and springing towards us across the surface of this putrid bog, and it was only by keeping our shot-guns for ever ready that we could feel safe from them. One funnel-shaped depression in the mora.s.s, of a livid green in color from some lichen which festered in it, will always remain as a nightmare memory in my mind. It seems to have been a special nest of these vermins, and the slopes were alive with them, all writhing in our direction, for it is a peculiarity of the Jaracaca that he will always attack man at first sight. There were too many for us to shoot, so we fairly took to our heels and ran until we were exhausted. I shall always remember as we looked back how far behind we could see the heads and necks of our horrible pursuers rising and falling amid the reeds.
Jaracaca Swamp we named it in the map which we are constructing.
The cliffs upon the farther side had lost their ruddy tint, being chocolate-brown in color; the vegetation was more scattered along the top of them, and they had sunk to three or four hundred feet in height, but in no place did we find any point where they could be ascended. If anything, they were more impossible than at the first point where we had met them. Their absolute steepness is indicated in the photograph which I took over the stony desert.
"Surely," said I, as we discussed the situation, "the rain must find its way down somehow. There are bound to be water-channels in the rocks."
"Our young friend has glimpses of lucidity," said Professor Challenger, patting me upon the shoulder.
"The rain must go somewhere," I repeated.
"He keeps a firm grip upon actuality. The only drawback is that we have conclusively proved by ocular demonstration that there are no water channels down the rocks."
"Where, then, does it go?" I persisted.
"I think it may be fairly a.s.sumed that if it does not come outwards it must run inwards."
"Then there is a lake in the center."
"So I should suppose."
"It is more than likely that the lake may be an old crater," said Summerlee. "The whole formation is, of course, highly volcanic. But, however that may be, I should expect to find the surface of the plateau slope inwards with a considerable sheet of water in the center, which may drain off, by some subterranean channel, into the marshes of the Jaracaca Swamp."
"Or evaporation might preserve an equilibrium," remarked Challenger, and the two learned men wandered off into one of their usual scientific arguments, which were as comprehensible as Chinese to the layman.
On the sixth day we completed our first circuit of the cliffs, and found ourselves back at the first camp, beside the isolated pinnacle of rock. We were a disconsolate party, for nothing could have been more minute than our investigation, and it was absolutely certain that there was no single point where the most active human being could possibly hope to scale the cliff. The place which Maple White"s chalk-marks had indicated as his own means of access was now entirely impa.s.sable.
What were we to do now? Our stores of provisions, supplemented by our guns, were holding out well, but the day must come when they would need replenishment. In a couple of months the rains might be expected, and we should be washed out of our camp. The rock was harder than marble, and any attempt at cutting a path for so great a height was more than our time or resources would admit. No wonder that we looked gloomily at each other that night, and sought our blankets with hardly a word exchanged. I remember that as I dropped off to sleep my last recollection was that Challenger was squatting, like a monstrous bull-frog, by the fire, his huge head in his hands, sunk apparently in the deepest thought, and entirely oblivious to the good-night which I wished him.
But it was a very different Challenger who greeted us in the morning--a Challenger with contentment and self-congratulation shining from his whole person. He faced us as we a.s.sembled for breakfast with a deprecating false modesty in his eyes, as who should say, "I know that I deserve all that you can say, but I pray you to spare my blushes by not saying it." His beard bristled exultantly, his chest was thrown out, and his hand was thrust into the front of his jacket. So, in his fancy, may he see himself sometimes, gracing the vacant pedestal in Trafalgar Square, and adding one more to the horrors of the London streets.
"Eureka!" he cried, his teeth shining through his beard. "Gentlemen, you may congratulate me and we may congratulate each other. The problem is solved."
"You have found a way up?"
"I venture to think so."
"And where?"
For answer he pointed to the spire-like pinnacle upon our right.
Our faces--or mine, at least--fell as we surveyed it. That it could be climbed we had our companion"s a.s.surance. But a horrible abyss lay between it and the plateau.
"We can never get across," I gasped.
"We can at least all reach the summit," said he. "When we are up I may be able to show you that the resources of an inventive mind are not yet exhausted."
After breakfast we unpacked the bundle in which our leader had brought his climbing accessories. From it he took a coil of the strongest and lightest rope, a hundred and fifty feet in length, with climbing irons, clamps, and other devices. Lord John was an experienced mountaineer, and Summerlee had done some rough climbing at various times, so that I was really the novice at rock-work of the party; but my strength and activity may have made up for my want of experience.
It was not in reality a very stiff task, though there were moments which made my hair bristle upon my head. The first half was perfectly easy, but from there upwards it became continually steeper until, for the last fifty feet, we were literally clinging with our fingers and toes to tiny ledges and crevices in the rock. I could not have accomplished it, nor could Summerlee, if Challenger had not gained the summit (it was extraordinary to see such activity in so unwieldy a creature) and there fixed the rope round the trunk of the considerable tree which grew there. With this as our support, we were soon able to scramble up the jagged wall until we found ourselves upon the small gra.s.sy platform, some twenty-five feet each way, which formed the summit.
The first impression which I received when I had recovered my breath was of the extraordinary view over the country which we had traversed.
The whole Brazilian plain seemed to lie beneath us, extending away and away until it ended in dim blue mists upon the farthest sky-line. In the foreground was the long slope, strewn with rocks and dotted with tree-ferns; farther off in the middle distance, looking over the saddle-back hill, I could just see the yellow and green ma.s.s of bamboos through which we had pa.s.sed; and then, gradually, the vegetation increased until it formed the huge forest which extended as far as the eyes could reach, and for a good two thousand miles beyond.
I was still drinking in this wonderful panorama when the heavy hand of the Professor fell upon my shoulder.
"This way, my young friend," said he; "vestigia nulla retrorsum. Never look rearwards, but always to our glorious goal."
The level of the plateau, when I turned, was exactly that on which we stood, and the green bank of bushes, with occasional trees, was so near that it was difficult to realize how inaccessible it remained. At a rough guess the gulf was forty feet across, but, so far as I could see, it might as well have been forty miles. I placed one arm round the trunk of the tree and leaned over the abyss. Far down were the small dark figures of our servants, looking up at us. The wall was absolutely precipitous, as was that which faced me.
"This is indeed curious," said the creaking voice of Professor Summerlee.
I turned, and found that he was examining with great interest the tree to which I clung. That smooth bark and those small, ribbed leaves seemed familiar to my eyes. "Why," I cried, "it"s a beech!"
"Exactly," said Summerlee. "A fellow-countryman in a far land."
"Not only a fellow-countryman, my good sir," said Challenger, "but also, if I may be allowed to enlarge your simile, an ally of the first value. This beech tree will be our saviour."
"By George!" cried Lord John, "a bridge!"
"Exactly, my friends, a bridge! It is not for nothing that I expended an hour last night in focusing my mind upon the situation. I have some recollection of once remarking to our young friend here that G. E. C.
is at his best when his back is to the wall. Last night you will admit that all our backs were to the wall. But where will-power and intellect go together, there is always a way out. A drawbridge had to be found which could be dropped across the abyss. Behold it!"