This, as all will see, was a great point in favor of the lads, if the deception could be continued; but there was the imminent danger that the rest of the Blackfeet, waiting in vain for the return of their comrade, would discover the truth. In such a case, a desperate fight, with the certainty of a fatal result upon the part of the lads, was sure to follow.
Comprehending the nature of the Indian, with its childish credulity and superstition, Little Rifle determined to appeal to this weakness. The Blackfeet believe that the waterfalls of their country are haunted by spirits, and knowing of the existence of the cavern in the rear of this, they could not but look upon the act of their companion as one of daring intrepidity.
The young trapper touched the arm of Harry, and motioned for him to draw back out of the way, while he crept forward until his eyes were at a point where he could see the Indians without showing himself. He waited only long enough to see that fully a half-dozen were clustered upon the rocks, where he suspected they were discussing the action of their companion.
Little Rifle then pushed his gun forward, and pulled the trigger. It was not aimed at the group, for he had no desire to injure any of them, unless compelled to do so in self-defense, but through the gauzy vail every one of them must have caught sight of the sheet of fire, without hearing any thing of the report.
This was enough, and they vanished from the spot as suddenly as if the ground had opened and swallowed them, not one being visible a dozen seconds afterward.
This was also a huge step forward upon the part of the boys, but there remained still the difficult necessity of getting out of their uncomfortable quarters, and making their way back to the cabin of old Ruff Robsart.
If the Blackfeet had left the rock, it was hardly probable that they had left the neighborhood, and the moment the boys should show themselves, they would be in for it again.
Under these circumstances, it would seem that there was really but one course for them to pursue, which was, to remain where they were until night, and then trust to the assistance of darkness for them to get away without being discovered.
Such, we say, was the course dictated by common sense and prudence, and yet a most unexpected and novel cause now appeared to prevent it. There are few of our readers, perhaps, who are not aware of the rapidly increasing distress caused by an unusual sound in the ears, when it is continued for any length of time. The screaming of a car-whistle, or the near booming of a cannon, after a while becomes unbearable, and will drive mad the person who has not become accustomed to it.
In the excitement of the occasion, and the danger from the Blackfeet, the lads were insensible to any discomfort from the overwhelming roar of the falls; but now, when standing directly beneath them and reflecting that they would probably have to wait for hours, they became aware of a growing uneasiness—a nervous restlessness, rapidly changing into distress, which convinced both that they could not maintain their position and retain their senses at the same time. It would not be long before the time would come when they would be willing to incur any risk to escape the intolerable anguish of this uproar.