Ere long, the Malagazeri, the chief tributary of Lake Tanganayika, was seen winding between heavy thickets of verdure, offering an asylum to many watercourses that spring from the torrents formed in the season of freshets, or from ponds hollowed in the clayey soil. To observers looking from a height, it was a chain of waterfalls thrown across the whole western face of the country.
Animals with huge humps were feeding in the luxuriant prairies, and were half hidden, sometimes, in the tall grass; spreading forests in bloom redolent of spicy perfumes presented themselves to the gaze like immense bouquets; but, in these bouquets, lions, leopards, hyenas, and tigers, were then crouching for shelter from the last hot rays of the setting sun. From time to time, an elephant made the tall tops of the undergrowth sway to and fro, and you could hear the crackling of huge branches as his ponderous ivory tusks broke them in his way.
“What a sporting country!” exclaimed Dick, unable longer to restrain his enthusiasm; “why, a single ball fired at random into those forests would bring down game worthy of it. Suppose we try it once!”
“No, my dear Dick; the night is close at hand—a threatening night with a tempest in the background—and the storms are awful in this country, where the heated soil is like one vast electric battery.”
“You are right, sir,” said Joe, “the heat has got to be enough to choke one, and the breeze has died away. One can feel that something’s coming.”
“The atmosphere is saturated with electricity,” replied the doctor; “every living creature is sensible that this state of the air portends a struggle of the elements, and I confess that I never before was so full of the fluid myself.”
“Well, then,” suggested Dick, “would it not be advisable to alight?”
“On the contrary, Dick, I’d rather go up, only that I am afraid of being carried out of my course by these countercurrents contending in the atmosphere.”
“Have you any idea, then, of abandoning the route that we have followed since we left the coast?”
“If I can manage to do so,” replied the doctor, “I will turn more directly northward, by from seven to eight degrees; I shall then endeavor to ascend toward the presumed latitudes of the sources of the Nile; perhaps we may discover some traces of Captain Speke’s expedition or of M. de Heuglin’s caravan. Unless I am mistaken, we are at thirty-two degrees forty minutes east longitude, and I should like to ascend directly north of the equator.”
“Look there!” exclaimed Kennedy, suddenly, “see those hippopotami sliding out of the pools—those masses of blood-colored flesh—and those crocodiles snuffing the air aloud!”
“They’re choking!” ejaculated Joe. “Ah! what a fine way to travel this is; and how one can snap his fingers at all that vermin!—Doctor! Mr. Kennedy! see those packs of wild animals hurrying along close together. There are fully two hundred. Those are wolves.”
“No! Joe, not wolves, but wild dogs; a famous breed that does not hesitate to attack the lion himself. They are the worst customers a traveller could meet, for they would instantly tear him to pieces.”
“Well, it isn’t Joe that’ll undertake to muzzle them!” responded that amiable youth. “After all, though, if that’s the nature of the beast, we mustn’t be too hard on them for it!”
Silence gradually settled down under the influence of the impending storm: the thickened air actually seemed no longer adapted to the transmission of sound; the atmosphere appeared MUFFLED, and, like a room hung with tapestry, lost all its sonorous reverberation. The “rover bird” so-called, the coroneted crane, the red and blue jays, the mocking-bird, the flycatcher, disappeared among the foliage of the immense trees, and all nature revealed symptoms of some approaching catastrophe.
At nine o’clock the Victoria hung motionless over Msene, an extensive group of villages scarcely distinguishable in the gloom. Once in a while, the reflection of a wandering ray of light in the dull water disclosed a succession of ditches regularly arranged, and, by one last gleam, the eye could make out the calm and sombre forms of palm-trees, sycamores, and gigantic euphorbiae.
“I am stifling!” said the Scot, inhaling, with all the power of his lungs, as much as possible of the rarefied air. “We are not moving an inch! Let us descend!”
“But the tempest!” said the doctor, with much uneasiness.
“If you are afraid of being carried away by the wind, it seems to me that there is no other course to pursue.”
“Perhaps the storm won’t burst tonight,” said Joe; “the clouds are very high.”
“That is just the thing that makes me hesitate about going beyond them; we should have to rise still higher, lose sight of the earth, and not know all night whether we were moving forward or not, or in what direction we were going.”
“Make up your mind, dear doctor, for time presses!”
“It’s a pity that the wind has fallen,” said Joe, again; “it would have carried us clear of the storm.”
“It is, indeed, a pity, my friends,” rejoined the doctor. “The clouds are dangerous for us; they contain opposing currents which might catch us in their eddies, and lightnings that might set on fire. Again, those perils avoided, the force of the tempest might hurl us to the ground, were we to cast our anchor in the tree-tops.”
“Then what shall we do?”
“Well, we must try to get the balloon into a medium zone of the atmosphere, and there keep her suspended between the perils of the heavens and those of the earth. We have enough water for the cylinder, and our two hundred pounds of ballast are untouched. In case of emergency I can use them.”
“We will keep watch with you,” said the hunter.
“No, my friends, put the provisions under shelter, and lie down; I will rouse you, if it becomes necessary.”
“But, master, wouldn’t you do well to take some rest yourself, as there’s no danger close on us just now?” insisted poor Joe.
“No, thank you, my good fellow, I prefer to keep awake. We are not moving, and should circumstances not change, we’ll find ourselves tomorrow in exactly the same place.”
“Good-night, then, sir!”
“Good-night, if you can only find it so!”
Kennedy and Joe stretched themselves out under their blankets, and the doctor remained alone in the immensity of space.
However, the huge dome of clouds visibly descended, and the darkness became profound. The black vault closed in upon the earth as if to crush it in its embrace.
All at once a violent, rapid, incisive flash of lightning pierced the gloom, and the rent it made had not closed ere a frightful clap of thunder shook the celestial depths.
“Up! up! turn out!” shouted Ferguson.
The two sleepers, aroused by the terrible concussion, were at the doctor’s orders in a moment.
“Shall we descend?” said Kennedy.
“No! the balloon could not stand it. Let us go up before those clouds dissolve in water, and the wind is let loose!” and, so saying, the doctor actively stirred up the flame of the cylinder, and turned it on the spirals of the serpentine siphon.
The tempests of the tropics develop with a rapidity equalled only by their violence. A second flash of lightning rent the darkness, and was followed by a score of others in quick succession. The sky was crossed and dotted, like the zebra’s hide, with electric sparks, which danced and flickered beneath the great drops of rain.
“We have delayed too long,” exclaimed the doctor; “we must now pass through a zone of fire, with our balloon filled as it is with inflammable gas!”
“But