a few minutes later an open space appeared in front of the boat. it was the month of the tributary flowing into the ganges from the left or north, and was more than a hundred yards across. since it was necessary to stem the current in order to take advantage of this refuge, the doctor contemplated it with misgiving, for the work of poling it up stream promised to be laborious. he had not forgotten his original plan of abandoning the boat and striking across the country on foot, taking advantage of the less-frequented roads and paths that were well known to him. he was relieved, however, to find the flow so languid that it was easy to make headway against it.

"i have never followed this stream far," he remarked, "and, therefore, have less knowledge of it than the rest of the country, but my impression is that it cannot serve us long."

"it will be time enough to leave the boat and take to the woods when we can go no further," said jack everson; "but we cannot get away from the main stream too soon."

this was self-evident. it was not likely that the natives after their decisive repulse would abandon their purpose of massacring the party, but they would be more guarded in what they did and probably secure reinforcements, an easy thing to do when the sanguinary wretches everywhere were thirsting for victims.

jack had seized one of the poles, and he and young wharton plied them with so much sturdiness that the heavy craft made better progress than at any time since it was used as a vehicle of safety. the course of the tributary was winding, and our friends had not gone far when they were shut out from the sight of any persons passing up and down the main river, even if close to the northern bank.

would the natives suspect the course taken by the whites? that was the all-important question that must soon be answered. after searching up and down the ganges without success, it was likely they would penetrate the stratagem and follow them, in which event the fugitives would be in a critical situation, since the straightness of the stream and the wooded shores would place them at much greater disadvantage than if they remained upon the ganges.

when the boat had ascended the tributary for perhaps an eighth of a mile it was deemed safe to lessen the work of poling. careful listening failed to detect any sound of pursuit, and there was ground for hoping that their enemies neither knew nor suspected what had been done.

several facts had become apparent. the densely wooded shores offered excellent concealment. by running the boat beneath the dense branches and among the heavy vegetation the keenest-eyed asiatics might pass up or down stream almost within arm's length without suspecting its presence. but the tributary had perceptibly narrowed and its current was swifter than at the mouth. all this pointed to the truth of what dr. marlowe suspected—the stream could not serve them much further.

the night was now so far advanced that the women took the advice of their friends and withdrew to the cabin for slumber. their quarters were cramped, but they made themselves fairly comfortable. the night was cooler than the day, but only sufficiently so to be pleasant. it was not deemed probable that anything would be seen of their enemies before the morrow, and perhaps not even then.

dr. marlowe insisted upon taking his turn in poling, but since there were four vigorous men without him, they would not consent. when two had toiled for an hour or more, they gave way to the other couple, and the progress thus continued without interruption, while the time slowly dragged along. the resting spells gave each the opportunity for sleep, thus husbanding their vigor for the morrow. finding that there was nothing to which he could turn his hand, the physician reclined at the bow and soon joined the others in dreamland.

it was probably one o'clock when jack everson, who had been sleeping for nearly an hour, was awakened by a gentle shaking of his shoulder. opening his eyes and looking up he saw wharton bending over him.

"all right," remarked the american; "i'm ready for my turn," and he rose, yawning, to his feet.

"i think we had better rest until morning."

"why?"

"the current has become so rapid that it is hard to make progress; this stream can't be of much further use to us."

it needed but a glance around in the gloom to see that it was as his friend had declared. the boat was so close to the left-hand shore that it was held motionless by anderson at the bow, who gripped an overhanging branch, with one hand. the water rippled around the front of the craft, and when jack dipped the end of one of the poles into the current it swept downward at a rate that astonished him.

"i esteem your advice good," he said, "but it will not do to leave the boat in sight."

with the help of the limbs and the use of the poles it was easy to force the craft under the bank, where it was screened from observation. then it was secured in place against drifting and all work for the time was over.

wharton and jack everson were the only persons awake. the women had been sleeping for several hours, while anderson and turner had long since joined the venerable doctor in the realms of unconsciousness. the two young men sat down where they could speak in low tones without being overheard.

"it won't do for all of us to sleep at the same time," remarked jack; "the scoundrels may be creeping up stream after us."

"that is hardly possible; i am sure that for the present we are as safe as if in the heart of london."

"i cannot believe as you do; since i have just enjoyed an hour's sleep i will act as sentinel until daybreak. i can easily keep awake for the few hours that remain."

"as you think best, though i am sure it is an unnecessary precaution."

"we must not forget that there are perils from the jungle as well as from the river. there is no saying what wild beast may pay us a visit."

inasmuch as jack could not be dissuaded from his purpose, and wharton began to suspect his friend was half right, the question was decided. wharton stretched out on the deck, falling asleep almost immediately, and jack thus found himself the only one with his senses at command and with the safety of the others dependent upon him.

he took his place near the cabin, where the women were slumbering, with his breechloader in hand. he was never more wide awake and was sure he would remain so for hours to come. wharton had offered to divide the duty with him in acting as sentinel, but our hero preferred to keep the matter in his own hands. he was sure his friend did not realize the full peril of their situation.

the stillness was broken only by the peculiar cries in the jungle, which it may be said were never wholly silent. first on the right, then on the left, then from the front, and again from different points on both sides of the stream he heard the sounds, some faint and far away, with others alarmingly close. the hoarse snarl of the tiger, the finer cry of the leopard, the squawking of night birds, with other noises that he could not identify, were continually in the air. had they been heard for the first time he would have been in a tremor of fear and nervousness; but man soon becomes accustomed to danger, and the nearest must come still nearer to cause his pulse an additional throb.

jack everson was sensible that through this medley of strange noises there was one sound that was continuous and never changing. so faint that at first he and wharton failed to notice it, it now impressed itself too distinctly upon his consciousness for him to be mistaken. it was a low, steady hum or moaning, such as the traveller hears when miles inland from the ocean. he could not identify it, though he made several guesses, and was still speculating unsatisfactorily, when he received a startling reminder that there was a new peril at his very feet.

the first notice was a faint purring sound, as if made by a gigantic cat, accompanied by a rustling of the vegetation scarcely a dozen feet away. he instantly grasped his rifle with both hands and was alert. it was impossible to distinguish ordinary objects in the gloom, but suddenly two small circles glittered with a greenish light and the purring was succeeded by a low, cavernous growl. then it all became clear to him: a royal bengal tiger was stealing upon the boat and was probably gathering himself for a leap at that very moment.

had all the occupants been asleep the frightful terror would have played sad havoc with them before they could defend themselves. as it was, it looked as if more than one fatality must follow his attack.

but for that phosphorescent gleam of the brute's eyes jack everson would not have been able to locate him, but the glow of the two objects defined the outlines and locality of the horrible thing as unmistakably as if the sun were overhead. the occasion was one in which everything depended upon promptness. the tiger was likely to shift his position and turn his head so that the eyes would fail to show.

jack reflected that there probably were a number of spots in the anatomy of the jungle terror that were more vulnerable than others; that a well-aimed bullet might be instantly fatal in one, while able to inflict only a partial wound in another. be that as it may, he was sure that a conical bullet driven between the eyes and through bone, muscle and brain by a rifle that could kill a man at the distance of a mile must do effective work when that brain was not a dozen feet distant from the muzzle of the weapon. at any rate, there was no time for inquiry and he did not hesitate.

aiming for a point midway between the gleaming orbs he pressed the trigger. it takes a well-aimed weapon to kill a royal bengal tiger, even at a short distance, but jack's rifle was well aimed. the tiny sphere of lead darted through the brain and along the spinal marrow as if fired with the vicious energy of a charge of dynamite.

it so happened that the tiger was in the act of making his graceful but fearful leap that was to land him upon the breast of the young man, who had risen to his feet just before firing. the check at that instant produced a queer result, the like of which is not often seen. the shock of the bullet crashing into the head of the muscular beast at the instant he was calling into play his prodigious strength intensified that strength to a sudden and astonishing degree. the consequence was that the tiger, instead of making the leap he intended, made one twice as great and overshot the mark. from out the gloom the beautiful sinewy body, of which only a glimpse could be caught, emerged as if fired from the throat of a columbiad and, curving over the shoulders of the man and the boat, dropped into the stream with a splash that sent the water flying in every direction.

beyond the line of shadow, where the faint moonlight fell upon him, the tiger was seen to be a beast of extraordinary size. he emitted one rasping snarl while sailing through the air, but was already dead when he fell into the water, where it could not be seen he had made a struggle. the sinewy body dipped out of sight, bobbed up again and the next minute was swept beyond view by the rapid current.

rather strangely, not one of the women was awakened by the report of the rifle so near them, and of the men dr. marlowe and anderson were the only ones who rose to a sitting posture and anxiously inquired the cause of the firing.

"i discovered an animal prowling near the boat," replied jack, who thought it well not to disturb them with the whole truth, "and i winged him."

"you are sure you killed him?" asked the doctor; "most likely it was a tiger."

"i am quite sure of that, and am just as sure that, considered strictly as a tiger, he is of no further account. i made another bull's-eye in his case."

"how many is that?" asked the physician, entering into the spirit of the jest.

"my fifth, counting only those that i am sure of."

"you are doing well; keep it up; let the good work go on," replied the elder, again adjusting himself for slumber, quite content to leave the valiant young american in charge of the boat and its occupants. jack had it in mind to question him about that distant murmuring sound that puzzled him, but when ready to do so he discovered that the doctor was again asleep and he did not disturb him.

the fact that one denizen of the jungle had paid the boat a visit was ground for looking for a call from another. jack remained, therefore, on the alert, and though under ordinary circumstances he would have fallen asleep he kept wide awake until the growing light in the sky told of the coming day. before the sun was fairly above the horizon all were astir. they bathed faces and hands in the roiled water and greeted one another with thankfulness that the night had passed without harm to any member of the little company.

when the three men and their wives fled from meerut they took with them enough food to last for several days. there is little excuse for people dying of starvation in any part of india, though sad to say it is only recently that thousands were swept away by famine. fruit is abundant and little meat is necessary in hot countries. before the morning meal was partaken of jack everson asked dr. marlowe to explain the cause of the low moaning noise that had been in his ears for moat of the night. the elder listened for a minute and replied:

"what i expected! we are very near the head of navigation; that sound comes from falls or rapids, above which we cannot go with this boat."

this announcement precipitated a discussion as to what was the best course to follow. the physician left no doubt of his sentiments.

"the devils will be prowling up this stream within a few hours; i should not be surprised if they are near us this moment; the boat is of no further use to us."

the three, anderson, turner and wharton, did not agree with him. the craft had served them so well that they were unwilling to abandon it. they seemed to believe that it offered a much safer means of defense than they could find anywhere on land.

"but you cannot stay forever on it," protested the doctor impatiently.

"we do not expect to," replied anderson; "we may decide to descend to the ganges again, and continue down the river."

"whither?"

"to cawnpore or some point nearer."

the doctor was aghast.

"you mean to leap straight into the hornet's nest; those are the places, of all others, that must be avoided."

"it may be as you say, but i am hopeful that the english garrisons have been able to hold out against the mutineers."

"it is a woeful mistake, my friend; if you persist in it we must part company."