IN WHICH THE PROFESSOR DISTINGUISHES HIMSELF.

Leaving this village immediately after the slaying of the tiger, the party continued to journey almost by forced marches, for not only was Nigel Roy very anxious to keep tryst with his father, and to settle the question of Kathleen's identity by bringing father and daughter together, but Van der Kemp himself, strange to say, was filled with intense and unaccountable anxiety to get back to his island home.

"I don't know how it is," he said to Nigel as they walked side by side through the forest, followed by Moses and the professor, who had become very friendly on the strength of a certain amount of vacant curiosity displayed by the former in regard to scientific matters—"I don't know how it is, but I feel an unusually strong desire to get back to my cave. I have often been absent from home for long periods at a time, but have never before experienced these strange longings. I say strange, because there is no such thing as an effect without a cause."

"May not the cause be presentiment?" suggested Nigel, who, knowing what a tremendous possibility for the hermit lay in the future, felt a little inclined to be superstitious. It did not occur to him just then that an equally, if not more, tremendous possibility lay in the future for himself—touching his recent discovery or suspicion!

"I do not believe in presentiments," returned the hermit. "They are probably the result of indigestion or a disordered intellect, from neither of which complaints do I suffer—at least not consciously!"

"But you have never before left home in such peculiar circumstances," said Nigel. "Have you not told me that this is the first time for about two hundred years that Krakatoa has broken out in active eruption?"

"True, but that cannot be to me the cause of longings or anxieties, for I have seen many a long-dormant crater become active without any important result either to me or to any one else."

"Stop, stop!" cried Professor Verkimier in a hoarse whisper at that moment; "look! look at zee monkeys!"

Monkeys are very abundant in Sumatra, but the nest of them which the travellers discovered at that time, and which had called forth the professor's admiration, was enough—as Moses said—to make a "renocerus laugh." The trees around absolutely swarmed with monkeys; those of a slender form and with very long tails being most numerous. They were engaged in some sort of game, swinging by arms, legs, and tails from branches, holding on to or chasing each other, and taking the most astonishing leaps in circumstances where a slip would have no doubt resulted in broken limbs or in death.

"Stand still! Oh! do stand still—like you vas petrivied," said the professor in a low voice of entreaty.

Being quite willing to humour him, the whole party stood immovable, like statues, and thus avoided attracting the attention of the monkeys, who continued their game. It seemed to be a sort of "follow my leader," for one big strong fellow led off with a bound from one branch to another which evidently tried the nerves of his more timid and less agile companions. They all succeeded, however, from the largest even to the smallest—which last was a very tiny creature with a pink face, a sad expression, and a corkscrew tail.

For a time they bounded actively among the branches, now high now low, till suddenly the big leader took a tremendous leap, as if for the express purpose of baffling or testing his companions. It was immensely amusing to see the degrees of trepidation with which the others followed. The last two seemed quite unable to make up their minds to the leap, until the others seemed about to disappear, when one of them took heart and bounded wildly across. Thus little pink-face with the corkscrew tail was left alone! Twice did that little monkey make a desperate resolution to jump, and twice did its little heart fail as it measured the distance between the branches and glanced at the abyss below. Its companions seemed to entertain a feeling of pity for it. Numbers of them came back, as if to watch the jump and encourage the little one. A third time it made an abortive effort to spring, and looked round pitifully, whereupon Moses gave vent to an uncontrollable snort of suppressed laughter.

"Vat you mean by zat?" growled the professor angrily.

The growl and snort together revealed the intruders, and all the monkeys, except pink-face, crowding the trees above the spot where they stood, gazed down upon them with expressions in which unparalleled indignation and inconceivable surprise struggled for the mastery.

Then, with a wild shriek, the whole troop fled into the forest.

This was too much for poor, half-petrified pink-face with the twisted tail. Seeing that its comrades were gone in earnest, it became desperate, flung itself frantically into the air with an agonising squeak, missed its mark, went crashing through the slender branches and fell to the ground.

Fortunately these branches broke its fall so that it arose unhurt, bounded into a bush, still squeaking with alarm, and made after its friends.

"Why did you not shoot it, professor?" asked Nigel, laughing as much at Verkimier's grave expression as at the little monkey's behaviour.

"Vy did I not shot it?" echoed the professor. "I vould as soon shot a baby. Zee pluck of zat leetle creature is admirable. It vould be a horrible shame to take his life. No! I do love to see ploock vezer in man or beast! He could not shoomp zat. He knew he could not shoomp it, but he tried to shoomp it. He vould not be beat, an' I vould not kill him—zough I vant 'im very mooch for a specimen."

It seemed as if the professor was to be specially rewarded for his generous self-denial on this occasion, for while he was yet speaking, a soft "hush!" from Van der Kemp caused the whole party to halt in dead silence and look at the hermit inquiringly.

"You are in luck, professor," he murmured, in a soft, low voice—very different from that hissing whisper which so many people seem to imagine is an inaudible utterance. "I see a splendid Argus pheasant over there making himself agreeable to his wife!"

"Vare? oh! vare?" exclaimed the enthusiast with blazing eyes, for although he had already seen and procured specimens of this most beautiful creature, he had not yet seen it engage in the strange love-dance—if we may so call it—which is peculiar to the bird.

"You'll never get near enough to see it if you hiss like a serpent," said the hermit. "Get out your binoculars, follow me, and hold your tongue, all of you—that will be the safest plan. Tread lightly."

It was a sight to behold the professor crouching almost double in order to render himself less conspicuous, with his hat pushed back, and the blue glasses giving him the appearance of a great-eyed seal. He carried his butterfly-net in one hand, and the unfailing rifle in the other.

Fortunately the hermit's sharp and practised eye had enabled him to distinguish the birds in the distance before their advance had alarmed them, so that they were able to reach a mound topped with low bushes over which they could easily watch the birds.

"Zat is very koorious an' most interesting," murmured the professor after a short silence.

He was right. There were two Argus pheasants, a male and female—the male alone being decorated superbly. The Argus belongs to the same family as the peacock, but is not so gaudy in colouring, and therefore, perhaps, somewhat more pleasing. Its tail is formed chiefly by an enormous elongation of the two tail quills, and of the secondary wing feathers, no two of which are exactly the same, and the closer they are examined the greater is seen to be the extreme beauty of their markings, and the rich varied harmony of their colouring.

When a male Argus wishes to show off his magnificence to his spouse—or when she asks him to show it off, we know not which—he makes a circle in the forest some ten or twelve feet in diameter, which he clears of every leaf, twig, and branch. On the margin of this circus there is invariably a projecting branch, or overarching root a few feet above the ground, on which the female takes her place to watch the exhibition. This consists of the male strutting about, pluming his feathers, and generally displaying his gorgeous beauty.

"Vat ineffable vanity!" exclaimed the professor, after gazing for some time in silence.

His own folly in thus speaking was instantly proved by the two birds bringing the exhibition to an abrupt close and hastily taking wing.

Not long after seeing this they came to a small but deep and rapid river, which for a time checked their progress, for there was no ford, and the porters who carried Verkimier's packages seemed to know nothing about a bridge, either natural or artificial. After wandering for an hour or so along its banks, however, they found a giant tree which had fallen across the stream and formed a natural bridge.

On the other side of the stream the ground was more rugged and the forest so dense that they had to walk in a sort of twilight—only a glimpse of blue sky being visible here and there through the tree-tops. In some places, however, there occurred bright little openings which swarmed with species of metallic tiger-beetles and sand-bees, and where sulphur, swallow-tailed, and other butterflies sported their brief life away over the damp ground by the water's edge.

The native forest path which they followed was little better than a tunnel cut through a grove of low rattan-palms, the delicate but exceedingly tough tendrils of which hung down in all directions. These were fringed with sharp hooks which caught their clothing and tore it, or held on unrelentingly, so that the only way of escape was to step quietly back and unhook themselves. This of itself would have rendered their progress slow as well as painful, but other things tended to increase the delay. At one place they came to a tree about seven feet in diameter which lay across the path and had to be scrambled over, and this was done with great difficulty. At another, a gigantic mud-bath—the wallowing hole of a herd of elephants—obstructed the way, and a yell from one of the porters told that in attempting to cross it he had fallen in up to the waist. A comrade in trying to pull him out also fell in and sank up to the armpits. But they got over it—as resolute men always do—somehow!

"Zis is horrible!" exclaimed the professor, panting from his exertions, and making a wild plunge with his insect-net at some living creature. "Hah! zee brute! I have 'im."

The man of science was flat on his stomach as he spoke, with arm outstretched and the net pressed close to the ground, while a smile of triumph beamed through the mud and scratches on his face.

"What have you got?" asked Nigel, doing his best to restrain a laugh.

"A splendid Ornit'optera a day-flying moss'," said Verkimier as he cautiously rose, "vich mimics zee Trepsichrois mulciber. Ant zis very morning I caught von Leptocircus virescens, vich derives protection from mimicking zee habits ant appearance of a dragon-fly."

"What rubbish dat purfesser do talk!" remarked Moses in an undertone to the hermit as they moved on again.

"Not such rubbish as it sounds to you, Moses. These are the scientific names of the creatures, and you know as well as he does that many creatures think they find it advantageous to pretend to be what they are not. Man himself is not quite free from this characteristic. Indeed, you have a little of it yourself," said the hermit with one of his twinkling glances. "When you are almost terrified of your wits don't you pretend that there's nothing the matter with you?"

"Nebber, massa, nebber!" answered the negro with remonstrative gravity. "When I's nigh out ob my wits, so's my innards feels like nuffin' but warmish water, I gits whitey-grey in de chops, so I's told, an' blue in de lips, an' I pretends nuffin'—I don't care who sees it!"

The track for some distance beyond this point became worse and worse. Then the nature of the ground changed somewhat—became more hilly, and the path, if such it could be styled, more rugged in some places, more swampy in others, while, to add to their discomfort, rain began to fall, and night set in dark and dismal without any sign of the village of which they were in search. By that time the porters who carried Verkimier's boxes seemed so tired that the hermit thought it advisable to encamp, but the ground was so wet and the leeches were so numerous that they begged him to go on, assuring him that the village could not be far distant. In another half-hour the darkness became intense, so that a man could scarcely see his fellow even when within two paces of him. Ominous mutterings and rumblings like distant thunder also were heard, which appeared to indicate an approaching storm. In these circumstances encamping became unavoidable, and the order was given to make a huge fire to scare away the tigers, which were known to be numerous, and the elephants whose fresh tracks had been crossed and followed during the greater part of the day. The track of a rhinoceros and a tapir had also been seen, but no danger was to be anticipated from those creatures.

"Shall we have a stormy night, think you?" asked Nigel, as he assisted in striking a light.

"It may be so," replied the hermit, flinging............