Forgot to moor the ship! Could such fatal carelessness be possible? If so, they must indeed run for their lives; for should the storm burst before they reached the ship she would be whirled away over the plain like an empty bladder before the blast, to what distance and with what results it was difficult just then to foreshadow; but among the possibilities which instantly presented themselves to the mind was that of death to the two inmates of the ship, irreparable damage to the craft herself, and four persons left to shift for themselves in the very centre of Africa, with nothing but the clothes they wore, the rifles they carried, and about a dozen rounds of ammunition apiece. The prospect was appalling enough to send a momentary spasm of horror thrilling through the stoutest heart there, but it also at the same time endowed them with a temporary access of almost supernatural energy; and the four men at once started for the ship at a speed which, even at the moment and to themselves, seemed incredible.
The distance they had to traverse was but short, a mere half-mile or so perhaps; but to the runners it seemed, notwithstanding their speed, as though they would never reach their goal. The grass was long and tangled, and rapid progress through it was possible only by a series of leaps or bounds; any other mode of progression would simply have resulted in their being tripped up at every other step. This, to men unaccustomed to such exercise, was in itself a sufficiently fatiguing process; but in addition to this they had to contend with the stifling heat of the stagnant atmosphere, which had been oppressive enough even whilst they had been in a condition of comparative inactivity; now it seemed to completely sap their strength and cause their limbs to hang heavy as lead about them. Then, too, the air had become so rarefied that it seemed impossible to breathe, whilst the blood rushed to their heads, and their hearts thumped against their ribs until it seemed as though nature could bear the tremendous exertion no more, and that the runners must drop dead upon the plain. Still, however, the men sped on, the portentous aspect of the heavens serving as an effectual spur to their flagging energies. The dark slate-coloured cloud had already reached the zenith, deepening in tint meanwhile until it had grown almost literally as black as ink. Presently a few great drops of hot rain splashed down upon the panting runners; and, as they rounded the end of the bush clump and came within view of the Flying Fish, a blinding flash of lightning blazed out from the sable canopy overhead, accompanied by a deafening peal of thunder which rattled and crashed and boomed and rumbled and rolled until its echoes gradually died away in the distance. A perfect deluge of rain almost immediately followed, wetting the runners to the skin in an instant as effectually as though they had been plunged into the sea. This lasted for perhaps ten seconds, during which every object, even to the racing figures of their companions, was hidden from view by the dense volume of falling water. Then the rain ceased as abruptly as it had begun, the travellers finding themselves at the same instant close to the towering hull of the Flying Fish.
“Last man in, close the trap!” gasped the baronet as he dashed up first to the opening in the ship’s bottom. The others were only a few yards behind him and heard his command; so he wasted no more time in conversation, but bounded up the long spiral staircase leading to the pilot-house, having reached which he laid his hands upon the engine lever and tiller, and gaspingly awaited the signal shout which should tell him he might move the ship, gazing anxiously out through the windows meanwhile on the watch for some sign of the bursting of the hurricane.
He had not long to wait. Almost before he had found time to remove his hat and wipe the perspiration from his brow a shout came echoing up the staircase shaft from the bottom of the ship, announcing the fact that the trap-door was securely closed; and Sir Reginald instantly raised the ship from the ground, sending the engines gently ahead at the same moment, and putting the helm hard over so as to bring the Flying Fish stem-on to the direction from which he expected the hurricane.
Chapter Sixteen.
A Battle on Lake Tanganyika.
The ship had risen about one hundred feet from the ground, and her engines had just completed a single revolution, when the black pall of murky cloud suddenly burst apart on the south-western horizon, revealing a broad patch of livid coppery-looking sky behind it; and at the same moment a low moaning sound became audible in the breathless air. A dull smoky grey veil of vapour seemed at the same time to overspread the more distant features of the landscape in that quarter, and through it the baronet and his three companions, who had now rejoined him, saw the trees and foliage of the most remote clumps of bush bowing themselves almost to the ground before some mighty invisible force. The moaning sound rapidly increased in power and volume, the cloud of vapour rushed down toward them with appalling speed; the long billowy grass was flattened down to the earth, as if under the pressure of a heavy roller; the successive clumps of bush were seen to yield one after the other to the resistless power of the hurricane, and the air in that direction grew dark with the leaves and branches which were torn from the trees.
“Raise the ship higher. Lift her above the power of the hurricane altogether if you have still time to do so,” shouted the professor in Sir Reginald’s ear, as the roar of the approaching tornado thundered in their ears with almost deafening intensity.