Our voyage now became monotonous and uniform. Dull as it has become, I have no desire to have it broken by any repetition of the perils and adventures of yesterday.
Thursday, August 20th. The wind is now N. N. E., and blows very irregularly. It has changed to fitful gusts. The temperature is exceedingly high. We are now progressing at the average rate of about ten miles and a half per hour.
About twelve o’clock a distant sound as of thunder fell upon our ears. I make a note of the fact without even venturing a suggestion as to its cause. It was one continued roar as of a sea falling over mighty rocks.
“Far off in the distance,” said the Professor dogmatically, “there is some rock or some island against which the sea, lashed to fury by the wind, is breaking violently.”
Hans, without saying a word, clambered to the top of the mast, but could make out nothing. The ocean was level in every direction as far as the eye could reach.
Three hours passed away without any sign to indicate what might be before us. The sound began to assume that of a mighty cataract.
I expressed my opinion on this point strongly to my uncle. He merely shook his head. I, however, am strongly impressed by a conviction that I am not wrong. Are we advancing toward some mighty waterfall which shall cast us into the abyss? Probably this mode of descending into the abyss may be agreeable to the Professor, because it would be something like the vertical descent he is so eager to make. I entertain a very different opinion.
Whatever be the truth, it is certain that not many leagues distant there must be some very extraordinary phenomenon, for as we advance the roar becomes something mighty and stupendous. Is it in the water, or in the air?
I cast hasty glances aloft at the suspended vapors, and I seek to penetrate their mighty depths. But the vault above is tranquil. The clouds, which are now elevated to the very summit, appear utterly still and motionless, and completely lost in the irradiation of electric light. It is necessary, therefore, to seek for the cause of this phenomenon elsewhere.
I examine the horizon, now perfectly calm, pure, and free from all haze. Its aspect still remains unchanged. But if this awful noise proceeds from a cataract—if, so to speak in plain English, this vast interior ocean is precipitated into a lower basin—if these tremendous roars are produced by the noise of falling waters, the current would increase in activity, and its increasing swiftness would give me some idea of the extent of the peril with which we are menaced. I consult the current. It simply does not exist: there is no such thing. An empty bottle cast into the water lies to leeward without motion.
About four o’clock Hans rises, clambers up the mast, and reaches the truck itself. From this elevated position his looks are cast around. They take in a vast circumference of the ocean. At last, his eyes remain fixed. His face expresses no astonishment, but his eyes slightly dilate.
“He has seen something at last,” cried my uncle.
“I think so,” I replied.
Hans came down, stood beside us, and pointed with his right hand to the south.
“Der nere,” he said.
“There,” replied my uncle.
And seizing his telescope, he looked at it with great attention for about a minute, which to me appeared an age. I knew not what to think or expect.
“Yes, yes,” he cried in a tone of considerable surprise, “there it is.”
“What?” I asked.
“A tremendous spurt of water rising out of the waves.”
“Some other marine monster,” I cried, already alarmed.
“Perhaps.”
“Then let us steer more to the westward, for we know what we have to expect from antediluvian animals,” was my eager reply.
“Go ahead,” said my uncle.
I turned toward Hans. Hans was at the tiller steering with his usual imperturbable calm.
Nevertheless, if from the distance which separated us from this creature, a distance which must be estimated at not less than a dozen leagues, and this spurting of water proceeded from the pranks of some antediluvian animal, his dimensions must be something preternatural. To fly is, therefore, the course to be suggested by ordinary prudence. But we have not come into that part of the world to be prudent. Such is my uncle’s determination.