"Of course, under a pressure of seven hundred and ten atmospheres."
"And how, lower down still?"
"Lower down the density will still increase."
"But how shall we go down then."
"Why, we must fill our pockets with stones."
"Well, indeed, my worthy uncle, you are never at a loss for an answer."
I dared venture no farther into the region of probabilities, for I might presently have stumbled upon an impossibility, which would have brought the Professor on the scene when he was not wanted.
Still, it was evident that the air, under a pressure which might reach that of thousands of atmospheres, would at last reach the solid state, and then, even if our bodies could resist the strain, we should be stopped, and no reasonings would be able to get us on any farther.
But I did not advance this argument. My uncle would have met it with his inevitable Saknussemm, a precedent which possessed no weight with me; for even if the journey of the learned Icelander were really attested, there was one very simple answer, that in the sixteenth century there was neither barometer or aneroid and therefore Saknussemm could not tell how far he had gone.
But I kept this objection to myself, and waited the course of events.
The rest of the day was pa.s.sed in calculations and in conversations.
I remained a steadfast adherent of the opinions of Professor Liedenbrock, and I envied the stolid indifference of Hans, who, without going into causes and effects, went on with his eyes shut wherever his destiny guided him.
CHAPTER XXVI.
THE WORST PERIL OF ALL
It must be confessed that hitherto things had not gone on so badly, and that I had small reason to complain. If our difficulties became no worse, we might hope to reach our end. And to what a height of scientific glory we should then attain! I had become quite a Liedenbrock in my reasonings; seriously I had. But would this state of things last in the strange place we had come to? Perhaps it might.
For several days steeper inclines, some even frightfully near to the perpendicular, brought us deeper and deeper into the ma.s.s of the interior of the earth. Some days we advanced nearer to the centre by a league and a half, or nearly two leagues. These were perilous descents, in which the skill and marvellous coolness of Hans were invaluable to us. That unimpa.s.sioned Icelander devoted himself with incomprehensible deliberation; and, thanks to him, we crossed many a dangerous spot which we should never have cleared alone.
But his habit of silence gained upon him day by day, and was infecting us. External objects produce decided effects upon the brain. A man shut up between four walls soon loses the power to a.s.sociate words and ideas together. How many prisoners in solitary confinement become idiots, if not mad, for want of exercise for the thinking faculty!
During the fortnight following our last conversation, no incident occurred worthy of being recorded. But I have good reason for remembering one very serious event which took place at this time, and of which I could scarcely now forget the smallest details.
By the 7th of August our successive descents had brought us to a depth of thirty leagues; that is, that for a s.p.a.ce of thirty leagues there were over our heads solid beds of rock, ocean, continents, and towns. We must have been two hundred leagues from Iceland.
On that day the tunnel went down a gentle slope. I was ahead of the others. My uncle was carrying one of Ruhmkorff"s lamps and I the other. I was examining the beds of granite.
Suddenly turning round I observed that I was alone.
Well, well, I thought; I have been going too fast, or Hans and my uncle have stopped on the way. Come, this won"t do; I must join them.
Fortunately there is not much of an ascent.
I retraced my steps. I walked for a quarter of an hour. I gazed into the darkness. I shouted. No reply: my voice was lost in the midst of the cavernous echoes which alone replied to my call.
I began to feel uneasy. A shudder ran through me.
"Calmly!" I said aloud to myself, "I am sure to find my companions again. There are not two roads. I was too far ahead. I will return!"
For half an hour I climbed up. I listened for a call, and in that dense atmosphere a voice could reach very far. But there was a dreary silence in all that long gallery. I stopped. I could not believe that I was lost. I was only bewildered for a time, not lost. I was sure I should find my way again.
"Come," I repeated, "since there is but one road, and they are on it, I must find them again. I have but to ascend still. Unless, indeed, missing me, and supposing me to be behind, they too should have gone back. But even in this case I have only to make the greater haste. I shall find them, I am sure."
I repeated these words in the fainter tones of a half-convinced man.
Besides, to a.s.sociate even such simple ideas with words, and reason with them, was a work of time.
A doubt then seized upon me. Was I indeed in advance when we became separated? Yes, to be sure I was. Hans was after me, preceding my uncle. He had even stopped for a while to strap his baggage better over his shoulders. I could remember this little incident. It was at that very moment that I must have gone on.
Besides, I thought, have not I a guarantee that I shall not lose my way, a clue in the labyrinth, that cannot be broken, my faithful stream? I have but to trace it back, and I must come upon them.
This conclusion revived my spirits, and I resolved to resume my march without loss of time.
How I then blessed my uncle"s foresight in preventing the hunter from stopping up the hole in the granite. This beneficent spring, after having satisfied our thirst on the road, would now be my guide among the windings of the terrestrial crust.
Before starting afresh I thought a wash would do me good. I stooped to bathe my face in the Hansbach.
To my stupefaction and utter dismay my feet trod only--the rough dry granite. The stream was no longer at my feet.
CHAPTER XXVII.
LOST IN THE BOWELS OF THE EARTH
To describe my despair would be impossible. No words could tell it. I was buried alive, with the prospect before me of dying of hunger and thirst.
Mechanically I swept the ground with my hands. How dry and hard the rock seemed to me!
But how had I left the course of the stream? For it was a terrible fact that it no longer ran at my side. Then I understood the reason of that fearful, silence, when for the last time I listened to hear if any sound from my companions could reach my ears. At the moment when I left the right road I had not noticed the absence of the stream. It is evident that at that moment a deviation had presented itself before me, whilst the Hansbach, following the caprice of another incline, had gone with my companions away into unknown depths.
How was I to return? There was not a trace of their footsteps or of my own, for the foot left no mark upon the granite floor. I racked my brain for a solution of this impracticable problem. One word described my position. Lost!
Lost at an immeasurable depth! Thirty leagues of rock seemed to weigh upon my shoulders with a dreadful pressure. I felt crushed.
I tried to carry back my ideas to things on the surface of the earth.
I could scarcely succeed. Hamburg, the house in the Konigstra.s.se, my poor Grauben, all that busy world underneath which I was wandering about, was pa.s.sing in rapid confusion before my terrified memory. I could revive with vivid reality all the incidents of our voyage, Iceland, M. Fridrikssen, Snaefell. I said to myself that if, in such a position as I was now in, I was fool enough to cling to one glimpse of hope, it would be madness, and that the best thing I could do was to despair.
What human power could restore me to the light of the sun by rending asunder the huge arches of rock which united over my head, b.u.t.tressing each other with impregnable strength? Who could place my feet on the right path, and bring me back to my company?
"Oh, my uncle!" burst from my lips in the tone of despair.
It was my only word of reproach, for I knew how much he must be suffering in seeking me, wherever he might be.