These horns were from six to eight inches long, black and shiny, slender and round, rising from the forehead perpendicularly, and curving sharply at the extremities into hooks. Very proud Chaffer was of them, for they meant; so much to him. They meant, for one thing, that he was now almost full grown, and that he would soon be of an age to take his place in the antelope world as a champion and fighter. He could hold his own now with some of the males, and, although he had just been driven out of the herd, several others had been forced out with him, so he did not trouble himself much about it.

The only thing he was puzzled about was what he should do next, but this little matter was decided for him in a manner he never dreamed of. He was some way from the herd now, but at that moment he heard the well-known whistle of the sentinel chamois.[Footnote: Each herd has a chamois who acts as a sentinel. At the slightest sign of danger this sentinel gives a peculiar whistle, not particularly shrill or piercing, but which has a curious, penetrating power and carries a great distance. Not only does this sentinel give warning of danger, but he indicates from which direction it is coming.—Author.] In an instant Chaffer was off, leaping over wide chasms, climbing over crags and dizzy heights, sliding down dangerous, slippery places, but always going in the opposite direction to the approaching enemy.

For Chaffer knew now what the danger was—it was a man; and he could, with his wonderful power of scent, smell him, although he was still a great distance away. Once having realized that it was a man, Chaffer lost no time, but made his way at once up the steepest crag he could find. It was much easier for him to go up than down, for his legs were adapted for this purpose, The hind ones being much longer than the front ones.

His small, neat feet were formed for climbing; his forefeet had very sharp hoofs, which, when descending, Chaffer would dig into the ground to gain a foothold, and his hind feet had curious, false hoofs. That is to say, the outer hoofs were higher than the soles, and this enabled him to have a grip on the slightest notch or projection on the face of the rocks, so that it was almost impossible for him to slip. In descending the rocks, he would place his forefeet close together and push them in front of him; he could then slide down the face of an almost perpendicular cliff with the greatest ease and safety, and alight at the bottom without so much as a scratch.

In going up a very steep hill, he would stand up on his hind legs, put his forefeet on some narrow shelf or ledge of rock, and then, with a sharp little bound, draw his body up, and stand with all four feet on a space scarcely big enough for a full-grown man.

Chaffer tried this plan now, and with good effect for a time, but he could smell the man coming nearer and nearer, and began to be terribly frightened. Timid and nervous to a wonderful degree, and of a cautious, suspicious nature, Chaffer's excitement grew intense, and his small, pointed ears quivered painfully. On he went, never stopping to glance round for a single instant, for it was not necessary; he knew only too well what was behind him, and his one object was to get away.

At this moment, however, there was another whistle from the sentinel of the herd, much fainter this time because farther off, but containing the information that there was danger at the top of the mountains as well as at the base. Chaffer hesitated a moment, but he decided to go on now, whatever came; he was far more at home on these sharp crags and dangerous heights than he was on smooth, even ground, and he could go where it was quite impossible for a man to follow.

So he gave a few more leaps, a few more bounds, although the scent of the man now was so strong as to bewilder him, and then landed on a tiny ledge face to face with a hunter!

It would have been hard to say which was the most surprised—the hunter or Chaffer. As a matter of fact, the hunter had been carefully watching another chamois a little lower down—a young male who had been turned out of the herd with Chaffer—and had no idea a second chamois was so close to him until Chaffer alighted on the ledge of rock at his very feet. The two looked at one another for an instant in deathlike silence, their eyes wide open with surprise and fright; for, had the chamois only known it, he could, with one touch of his horns, have sent the hunter whirling through space and onto the rocks beneath, where he would have been dashed to pieces.

Then, with a wild leap, Chaffer sprang—sprang down the precipitous chasm which yawned beneath them, a distance of nearly thirty feet. As he went down, with his graceful body hanging in the air, and his handsome head, with its curved horns, thrown back, he turned himself diagonally, striking his feet sharply every now and then against the face of the rock in his descent, and alighted at the foot in perfect safety.