Five minutes later the _Flying Fish_ was again in the air, and heading at a twenty-knot speed in the direction from which the sound of roaring appeared to proceed, while several vultures had already mysteriously appeared high in the air above the carcase of the leopard, and were rapidly dropping down toward it.

The roaring still continued, each repet.i.tion of it coming to them very much more distinctly than the one that had preceded it, and presently, as the ship swept along, a little valley among the rocks swung into view, and there, in the very middle of it, was to be seen the singular sight of which the professor and Lethbridge had spoken. The valley was really a shallow saucer-like hollow in the rocky outcrop, with a small pool in the middle of it, the ground forming the interior of the saucer, so to speak, being quite smooth, with no projections or inequalities of any kind to form cover for stalking purposes. The rock-surface was here covered with a layer of soil which supported a crop of short, rich gra.s.s, and had consequently been selected as the abode of a herd of some thirty gazelles, which were now drawn up in line, close to the edge of the water-hole. To the professor and Lethbridge, both of whom had witnessed a similar incident before, the matter was perfectly clear.

The gazelles had gone down to the pool to drink, and, while thus engaged, had been approached by a magnificent lion and lioness, which had succeeded in getting within about a hundred yards of the herd ere the latter had discovered their presence. Then the gazelles had faced round upon their formidable foes, and stood at gaze, apparently paralysed into inactivity, while the lions were evidently quite aware that any attempt to make a dash at the herd would at once put it to flight and send it hopelessly beyond their reach. So there the two groups remained about a hundred yards apart, the gazelles motionless.

The lioness also was motionless, lying stretched at full length upon the ground with her head resting upon her outstretched fore paws, while her lord, some four or five yards nearer the gazelles, had a.s.sumed a half-crouching att.i.tude, very similar to that of a barking dog, and was still emitting deep-throated roars at intervals.

"Ach, it is all right; we are in time; and now you will see what you will see!" exclaimed von Schalckenberg, as Sir Reginald stopped the engines, and the _Flying Fish_, slowing down, drifted gently into a position which afforded the occupants of her deck an excellent view of the little drama that was in progress.

The ship finally came to rest in the perfectly still air, immediately in the rear of the lion and lioness, which were apparently altogether too profoundly interested in their own proceedings to have become aware of the presence of the great ship behind them; while the gazelles also--in full view of which the huge, glistening, silver-like craft floated, at a height of some two hundred feet above the ground--appeared to be too intently occupied in watching their ferocious enemy to have any attention to spare for anything else.

As Sir Reginald emerged from the pilot-house, the professor, in a low-toned murmur, advised his companions to take their binoculars and note especially the behaviour of the gazelles. They did so, and presently became aware that one animal in particular--a fine fat buck-- was exhibiting symptoms of very acute distress and terror, tossing his head and stamping on the ground with his feet at every roar of the lion, and holding himself back in an att.i.tude that almost appeared to suggest the idea that he was being pushed or pulled out of the line toward the lion; yet there was nothing to show that this was actually the case.

Presently, however, at another roar from the lion, the buck actually advanced a few paces out from the ranks of his fellows, evidently with the utmost reluctance, and stood shivering palpably in mortal terror.

"Take your rifles, gentlemen," murmured von Schalckenberg. "We must save that poor beast's life. But do not fire until I give the word, for I should like you all to see a little more of this really remarkable performance before we put an end to it. Boris, my friend, you have never yet shot a lion, while the rest of us have. You are therefore fairly ent.i.tled to the privilege of first shot. Take you, therefore, the lion; one of us will account for the lioness. And remember that your rifle will afford you twenty shots without reloading; if, therefore, you should fail to kill with the first shot, peg away until you do. Now, who is to be responsible for the lioness?"

"Let Mildmay take her," said Sir Reginald. "Lethbridge has already had his shot; and yours and mine, Professor, can come later."

And so it was arranged. Meanwhile the lion, evidently encouraged by what he had already accomplished, redoubled his efforts, sending forth roar after roar, at every one of which the unfortunate buck, shivering in every limb, and with tears streaming down his cheeks, advanced a pace or two nearer the lion. At length, however, the sight of the animal's distress became too painful for Lady Olivia, and, lowering her binoculars, she exclaimed, in low, tense accents--

"Oh, please put an end to it, somebody! It is cruel of us to allow that pretty creature to go on suffering such agonies of terror simply because the sight happens to be of an interesting and singular nature. Surely we have seen enough, have we not?"

For answer Colonel Sziszkinski raised his rifle to his shoulder and, taking steady aim, pulled the trigger. There was the usual faint click of the hammer, and immediately a little spurt of brown dust close to the lion's fore paws showed that the Russian had missed. The lion took no notice whatever of the fact that a bullet had just missed him, but crouched again for the emission of another roar, when the click of the hammer again sounded, immediately followed by the loud thud of the bullet, and the roar ended in a savage snarl as the great beast lurched forward on to his head, and with a single convulsive extension of his body lay quiet and still. At the same instant the thud of another bullet was heard, and the lioness was seen to twitch her head slightly, but without making any further movement. As for the troop of gazelle, no sooner was the lion down than, throwing up their heads with one accord, they wheeled sharply round to the left and dashed off across the little plain, vanishing a minute later through a cleft of the rocks.

Meanwhile Mildmay was looking alternately at the lioness and his rifle with a puzzled expression.

"I could have sworn that I hit the brute," he exclaimed, "yet there she lies as coolly and comfortably as though nothing had happened. Even the tragic end of her lord and master seems to have no interest for her!

But I'll wake you up, my beauty, or I'll know the reason why." And he raised the rifle again to his shoulder.

"No need to waste another cartridge, skipper," remarked Lethbridge, who had been inspecting the lioness through his binoculars. "Take these gla.s.ses, and look at her head, just behind the left ear."

Mildmay took the gla.s.ses, and, having used them for a moment, handed them back with a grunt of satisfaction.

"Thanks," he said. "I felt certain I had hit her; but I couldn't understand why she never moved."

"She _did_ move, my boy," answered Lethbridge; "she twitched her head when your bullet struck her, but she had no time for more, for you killed her on the spot, just as she lay. An uncommonly neat shot I call it--for a sailor."

Mildmay laughed.

"Yes," he said, "it's not half bad--for a sailor, as you say, Colonel.

We sailors don't claim to be crack rifle-shots, you know; we leave that for the soldiers. But when it comes to shooting with a nine-point-two, or a twelve-inch gun, I believe there are some of us who could show the red-coats a trick or two."

These two--Mildmay and Lethbridge--had not wholly escaped the feeling of professional jealousy that even to this day lingers in a more or less modified form between the navy and the army; and if the occasion happened to be peculiarly favourable, they sometimes exchanged a chaffing remark or two at each other's expense. But the sparring was always perfectly good-natured, and absolutely devoid of all trace of ill-feeling, for, first of all, both were gentlemen in the highest sense of the term; and, in the next place, the friendship that subsisted between them was far too thorough and whole-hearted for either ever willingly to wound, though ever so slightly, the susceptibilities of the other.

It now became necessary again to bring the ship to earth, in order to secure the skins of the lion and lioness; and, the ground being favourable, this was done quite close to the spot where the two carcases lay. A few minutes later the men were once more busily engaged on the task of removing the pelts, both of which were exceedingly valuable of their kind, the animals being exceptionally fine specimens, and in perfect condition. The lion, indeed, was unanimously p.r.o.nounced to be the finest that any of them had ever seen, being quite a young beast, but full-grown, with a magnificently thick, black mane, and a truly formidable set of perfect teeth and claws. Colonel Sziszkinski was in high feather at having been so fortunate as to secure so splendid a specimen, and expressed a very keen desire to secure the skull as well as the skin, if possible. At this von Schalckenberg remarked that nothing could be easier, provided that Sir Reginald was willing to remain in the neighbourhood of the rocks for the night; for there was a huge ants' nest close at hand, and all that was necessary was to place the skinned head alongside the nest, and he would guarantee that the insects would clean the skull bare of every vestige of flesh by the following morning. Of course, Sir Reginald, who was the very personification of courtesy, readily agreed to this, and the _Flying Fish_ was berthed for the night on the sand, a mile or two to windward of the rocks--that their slumbers might not be disturbed by the quarrelsome cries of the vultures over the carcases; and when, after breakfast next morning, they returned to ascertain the result of the experiment, it was found to be as the professor had said. The skull was picked so clean of absolutely every particle of flesh that it could safely be stowed away without the least risk of becoming offensive.

CHAPTER ELEVEN.

AN ELEPHANT AND RHINOCEROS DUEL.

The skull of the lion having been secured, the _Flying Fish_ rose into the air, immediately after breakfast, and an hour was devoted to the thorough examination of the remaining extent of the patch of rocks, to ascertain whether any further specimens of the big carnivora had taken up their abode upon it. But no more were to be found, and the southward journey was therefore resumed at the leisurely speed of about fifteen knots, the noon observation for lat.i.tude showing that the ship had entered the tropic of Cancer shortly after eleven o'clock that morning.

The remainder of that day pa.s.sed uneventfully, as did the next, with the exception that, the ship having been raised to an alt.i.tude of two thousand feet above the surface of the earth, in order that the travellers might be above and out of the layer of highly heated air produced by the reflection of the sun's rays from the surface of the sand, they again caught sight of the Nile, which swam into view on their left hand during the forenoon of the second day, near the little village of Dashi, and remained in sight thereafter until they descended to earth for the night, some twenty-five miles west of the town of New Dongola.

Here they were again treated to the spectacle of a superb desert sunset.

This leisurely mode of progression, however, was beginning to pall somewhat upon the travellers, or rather, upon the male portion of them.

It was altogether too uneventful for their taste; moreover, their appet.i.te for sport had been whetted afresh by their experience among the rocks, and as they sat at dinner that night they unanimously decided that, as the climate seemed to agree thoroughly with little Ida--who was growing better and stronger every day--they would waste no further time in dawdling, but would forthwith make the best of their way to the spot where, on their previous cruise, they had seen that wonderful animal the unicorn, almost precisely the creature depicted in the royal arms of Great Britain, and endeavour to secure a specimen or two. Accordingly, after spending a very enjoyable evening in the music-saloon, the ladies retired to rest about midnight, while the men, producing their large-scale map of Africa, carefully laid down upon it the course, and measured off the distance necessary to carry them to the point which they desired to reach. This ascertained, Mildmay--who usually performed the duties of navigator--ascended to the pilot-house and, injecting a sufficient quant.i.ty of vapour into the air-chambers to produce the required vacuum, caused the ship to rise to a height of ten thousand feet into the calm belt, sent the engines ahead, gradually raising their speed to the maximum, and meanwhile heading the ship upon her proper course. Then he returned below, and reported to Sir Reginald what he had done, and all hands retired to their respective cabins for the night, quite confident, from past experience, of the ship's ability to take care of herself during the hours of darkness.

They all slept well, as was usual with them while enjoying this delightful, untrammelled, open-air existence; but the eager enthusiasm of the scientist and explorer caused the professor to be astir with the first streak of dawn, and rising quietly, he made his way noiselessly, in pyjamas and slippered feet, to the pilot-house, out of the windows of which he peered eagerly about him.

The _Flying Fish_ was still sweeping steadily along through the air at a speed of one hundred and twenty miles an hour, with her sharp snout holding steadily to the course at which it had been set overnight; but beneath her nothing was visible save a vast sea of impenetrably thick white fog. The professor consulted his watch.

"We should be close to the spot by this time," he murmured. "Let us get down beneath that fog, and see where we are."

He stopped the engines, opened the air-valve, and the great ship instantly began to settle quietly down. In a few minutes she sank gently into the fog-bank, and the professor, after touching another lever or two, ran nimbly down the pilot-house stairs and out on deck, that he might get a clear view of his surroundings. Stepping to the guard-rail that took the place of bulwarks in the _Flying Fish_, he looked eagerly about and under him. For a few seconds there was nothing to be seen but huge wreaths of dense white steam-like mist writhing and curling about the ship; then, here and there, great shapeless phantom forms dimly appeared through the enshrouding fog, and the professor knew that he was in the midst of a country thickly dotted with extensive clumps of "bush." A moment later a slight grating jar told that the ship had grounded, and hastening back to the pilot-house, von Schalckenberg brought the four grip-anchors into action, thus securing the ship to the spot on which she had landed, after which he made his way to one of the bathrooms, took his bath, and then returned to his cabin and dressed.

The shock of the ship taking the ground, light though it was, sufficed to arouse the other sleepers, and half an hour later the male contingent of the party were a.s.sembled in the dining-saloon, taking their early coffee and biscuit. By glancing from time to time through the saloon windows, they were able to see that the fog still hung thick about them; but while they lingered, chatting over their coffee, the professor suddenly cried out that the mist was clearing, and with one accord they emptied their cups and made for the deck.

Yes, the fog was certainly thinning away under the influence of the now risen sun; and in a few minutes it was possible to see with tolerable distinctness, not only the ground beneath them, but also the clumps of bush in their immediate neighbourhood, while other and more distant objects were momentarily stealing into view as the mist-wreaths thinned away and vanished. A few minutes later the entire landscape lay clearly revealed before them, sharp and distinct in the crystalline purity of the early morning light.

And then exclamations of astonishment burst simultaneously from the lips of four of the five male voyagers; for, as they glanced about them, they instantly recognised their surroundings, and discovered that von Schalckenberg, in the blindness of fog that had enveloped him, had brought the _Flying Fish_ to earth within less than a hundred yards of the identical spot which she had occupied upon the memorable occasion when they had first beheld the unicorns. Yes, there was the little shallow lake amid the tall bordering reeds of which they had ambushed themselves for the purpose of shooting the game that came down there to drink at night; there was the streamlet from which they had replenished their supply of fresh water; they were now in the same open, gra.s.sy, bush-enveloped s.p.a.ce that the ship had previously occupied; and over there, to the left, within a stone's throw, was the precise spot upon which she had rested; and they doubted not that within five minutes they could find the actual holes in the soil made by her grip-anchors some six years or more ago. And there, some two miles away, rose the low, bare hill upon the crest of which the professor had first seen the troop of unicorns standing out against the background of pale primrose sky as they grazed. Ay, and there were animals of some sort up there now! The professor rushed below, and presently reappeared with a pair of binoculars in his hand, which he hastily levelled at the tiny dots.

Alas! they were only black antelope, interesting creatures enough from the mere sportsman's point of view, but not what he wanted and hoped to see. He lowered the gla.s.ses with a sigh of resignation, which said as plainly as words, that he supposed it was too much to hope that they would be lucky enough to find instantly what they were in search of.

And while they stood chatting together the ladies and little Ida stepped out on deck and joined them; and then there were renewed exclamations of wonder and delight at the change from the desert scenery upon which they had gazed the day before, and for so many days previously that they had begun to tire of it slightly.

The air was rapidly becoming heated under the rays of a sun that would be very nearly vertical at noon; at Mildmay's suggestion, therefore, the men of the party busied themselves forthwith in spreading the awnings fore and aft, that the ladies might have a welcome shade under which to sit during the day, and while they were still tying the last lanyards the breakfast-gong sounded, and five minutes later the entire party was gathered round the breakfast-table in a condition of exuberantly buoyant spirits.

No one felt disposed to linger long over the meal that morning, and within half an hour everybody was again on deck, each provided with a pair of binoculars, while the men folk--attired in stalking suits of thin but tough grey-green tweed, consisting of Norfolk jacket and knickerbockers, with caps of the same material, and shod with stout boots, surmounted by thick leather gaiters reaching to the knee, as a protection against possible snake-bites--had taken the precaution to bring up their rifles and bandoliers with them, in order that they might be ready for any emergency.

Their first act was to sweep the entire visible surface of the country with their gla.s.ses; but nothing more interesting than a few bunches of deer and antelope were to be seen. This, however, was not to be very greatly wondered at, for the ground was so heavily enc.u.mbered with bush that comparatively little of it was to be seen. It was perfectly clear that if they wished to find game, they must go and look for it. And there were two ways of doing this. One was to sally forth on foot; while the other, and much the easier, way, was to rise a few hundred feet in the air, and then survey the country afresh. It was but necessary to mention the latter course for it to be promptly decided upon; and Sir Reginald at once went to the pilot-house and did what was requisite, with the result that, a minute or two later, the _Flying Fish_ was a thousand feet in the air, and drifting very gently to the southward before a languid northerly breathing of warm wind.

This new position of the ship disclosed a scene of a very different character from that upon which they had just before been gazing; for not only had they now a very much wider horizon, but they were also able to see over and beyond a great deal of the bush in their near vicinity, and thus survey much open s.p.a.ce that had before been hidden from them.

Moreover, many sounds that had before been inaudible to them now reached their ears.

Sir Reginald now emerged from the pilot-house and rejoined his companions, who all this while had never ceased to search the country with their binoculars.

"Well, gentlemen," he exclaimed, "have you discovered anything worthy of your notice?"

"There is a small herd of elephant feeding in that clump of timber yonder," answered the professor, "and a few buck and antelope scattered about here and there; but I can see no sign of unicorns, as yet."

"Then," said Sir Reginald, cheerfully, "we must be content with what we can get, and go for the elephants. Probably we shall be obliged to go into ambush at night for the unicorns. They _must_ drink, I presume; and, if so, we ought to get them, sooner or later, by watching among the reeds of the pool. What say you, gentlemen; do you care to try for a shot at those elephants?"

Colonel Sziszkinski eagerly expressed his willingness to join a party, and Lethbridge was altogether too keen a sportsman to let slip such an opportunity; but Mildmay seemed rather disposed to be lazy that morning, and linger with the ladies, while it soon became evident that the professor could not be satisfied with any game other than unicorns. It was therefore speedily arranged that Sir Reginald, Lethbridge, and their Russian guest should have a try for the elephants, while Mildmay and von Schalckenberg remained on board the _Flying Fish_.

The clump of timber in which the elephants had been seen feeding was by this time about two miles distant, and almost directly to windward, in the midst of a wide open s.p.a.ce, with no bush near enough to afford effective cover for the hunters within range of their rifles. It would be necessary, therefore, for the animals to be stalked. But there happened to be a large clump of bush about a mile directly to leeward of the timber, extensive enough almost to conceal the _Flying Fish_ behind it, while affording those on her deck a very clear and uninterrupted view of the movements of both hunters and hunted; and it was therefore decided to head the ship for this. Von Schalckenberg accordingly retired to the pilot-house to navigate the craft to the chosen position, and Mildmay joined the ladies, while the three sportsmen went below to complete their final preparations and hold themselves ready to issue forth by way of the diving-chamber as soon as they should feel the ship take the ground.

At a low rate of speed, and keeping the ship dead end-on to the clump of timber--to avoid alarming the elephants--the professor deftly manoeuvred her into the berth chosen for her, and brought her gently to earth on a spot which afforded those on her deck a clear view over the top of the bush, while concealing practically the whole of her hull from the keen-sighted pachyderms; and, a few minutes later, the three hunters emerged from underneath the ship and waved a silent adieu to the little group who stood on deck watching them.