After a long chase the distance between them was still two hundred paces at the least. The young hunter, with a feeling of impatience, once more plied the spur in a fresh effort to come up; while the other seemed to spring forward as swiftly as ever.

All at once Basil observed that the white steed, instead of running straight forward, appeared to go from side to side, moving in crooked lines! Basil saw this with surprise. He looked to discover the cause. As his eye glanced along the ground, he perceived that it was uneven—covered, as far as he could see, with little hillocks. The mustang was among them. It was this, then, that was causing him to run so strangely. Basil had hardly made the observation, when he felt his horse sink suddenly under him, and tumble headlong upon the prairie!

The rider was flung from his seat, though not much hurt. He rose at once to his feet. Black Hawk struggled up at the same time, and stood still, his wet flanks rising and falling as he breathed and panted. He was not in a condition to gallop farther. But even had he been fresh, Basil saw that the chase was now at an end. The little hillocks, which he had just noticed, stood thick upon the prairie, as far as the eye could reach; and among these the wild horse was gliding off as swiftly as ever. When the hunter got to his feet again, the other was nearly a quarter of a mile distant, and at that moment sent back a shrill neigh, as if triumphing over his escape—for he had escaped beyond a doubt.

Basil saw this with chagrin. He saw that further pursuit was not only useless, but dangerous; for although he had never seen anything like these little mounds before, he knew very well what they were, and the danger of riding at a rapid rate among them. He had received a timely lesson—for he was just entering their borders when his horse fell—fortunately to rise again with sound limbs. He knew he might not get off so safely a second time, and he had no inclination to take the chances of another tumble. He was not going to risk the loss of his favourite Black Hawk for the white steed, even had he been certain of capturing the latter. But this was no longer likely. On the contrary, he might, instead of making a capture, lose his own horse, were he to continue the chase; and that he well knew would be a terrible situation. With the best grace he could, therefore, he abandoned the pursuit, leaving the mustang to scamper off alone. He watched him for several minutes, until the latter, far, far away, faded like a white cloud into the pale blue of the horizon.

The young hunter now bethought him of returning to his companions. In what direction was he to go? He looked around for the butte. There it was; but, to his astonishment, it lay directly before him, and nearer than when he last saw it! He had been all this while galloping towards it; but in his haste had not noticed this. Lucien and François must be behind, thought he, and would soon come that way. The best thing he could do, therefore, would be to wait until they should come up; and, with this intention, he sat down upon one of the little hillocks, leaving his horse to wander about at will.


Chapter Twenty Four.

A Dog-Town.

Black Hawk strayed off to some distance in search of grass, for the latter was scanty near the spot; and what there was of it had been eaten as close to the ground, as if a thousand rabbits had been feeding upon it! Basil did not hinder his horse from going. He knew that he was too well trained to run away, and that he could recall him at any moment by a whistle. He sat still, therefore; now scanning the prairie to the eastward, and now endeavouring to kill time by examining the strange little mounds on the other side. Of these there were thousands—indeed, they covered the plain, both to the north and south, and west, as far as Basil could see. They were shaped like truncated cones, about three feet in diameter at the base, and not over two in height. Near the top of each was the entrance—a hole not much larger than would have been used by a rat. There was no grass immediately around this hole, although the sides and tops of the mounds were clothed with a smooth green turf that gave them the appearance of having been constructed a long time ago.