Some living creature was trotting along on the trail behind, keeping approximately the same distance between them.
Foregoing any attempt to ignore it, she set her cool young mind to thinking what manner of beast it might be. Its step was not greatly different from that of a large dog,—except possibly a dog would have made slightly more noise. Yet she couldn't even be sure of this basic premise, because this animal, whatever it might be, had at first seemingly moved with utmost caution, but now took less care with its step than is customary with the wild denizens of the woods. A wolf, for instance, can simply drift when it wishes, and the silence of a cougar is a name. Yet unless her pursuer were a dog, which seemed entirely unlikely, it was certainly one of these two. She would have liked very much to believe the step was that of Old Woof, the bear, suddenly curious as to what this dim light of hers might be; but she couldn't bring herself to accept the lie. Woof, except when wounded or cornered, is the most amiable creature in the Oregon woods, and it would give her almost a sense of security to have him waddling along behind her. The wolves and cougar, remembering the arms of Woof, would not be nearly so curious. But unfortunately, the black bear had never done such a thing in the memory of man, and if he had, he would have made six times as much noise. He can go fairly softly when he is stalking, but when he is obliged to trot—as he would be obliged to do to keep up with a swift-walking human figure—he cracks twigs like a rolling log. She had the impression that the animal behind had been passing like smoke at first, but wasn't taking the trouble to do it now.
The sound was a soft pat-pat on the trail,—sometimes entirely obliterated but always recurring when she began to believe that she had only fancied its presence. Sometimes a twig, rain-soaked though it was, cracked beneath a heavy foot, and again and again she heard the brush crushing and rustling as something passed through. Behind it all, a weird motif, remained the pat-pat of cushioned feet. Sometimes, when the trail was covered with soft pine needles, it was practically indistinguishable. She had to strain to hear it,—and it is not pleasing to the spirit to have to strain to hear any sound. On the bare, rain-packed earth, even untrained plainsmen's ears could not possibly doubt the reality of the sound.
The animal was approximately one hundred feet behind. It wasn't a wolf, she thought. The wolves ran in packs this season, and except in winter were more afraid of human beings than any other living creature. It wasn't a lynx—one of those curiosity-devoured little felines that will mew all day on a trail and never dare come near. It was much too large for a lynx. The feet fell too solidly. She had already given up the idea that it could be Woof. There were no dogs in the mountains to follow at heel; and she had no desire whatever to meet Shag, the faithful hybrid that used to be her guardian in the hills. For Shag had gone to his well-deserved rest several seasons before. Two other possibilities remained. One was that this follower was a human being, the other that it was a cougar.
Ordinarily a human being is much more potentially dangerous to a woman in the hills at night than a cougar. A cougar is an abject coward and some men are not. But Snowbird felt herself entirely capable of handling any human foes. They would have no advantage over her; they would have no purpose in killing from ambush; and she trusted to her own marksmanship implicitly. While it is an extremely difficult thing to shoot at a cougar leaping from the thicket, a tall man standing on a trail presents an easy target. Besides, she had a vague sense of discomfort that if this animal were a cougar, he wasn't acting true to form. He was altogether too bold.
She knew perfectly that many times since men came to live in the pine-clad mountains they have been followed by the great, tawny cats. Curiosity had something to do with it, and perhaps less pleasing reasons. But any dreadful instincts that such a cat may have, he utterly lacks courage to obey. He has an inborn fear of men, a fear that goes down to the roots of the world, and he simply doesn't dare make an attack. It was always a rather distressing experience, but nothing ever came of it except a good tale around a fireside. But most of these episodes, Snowbird remembered, occurred either in daylight or in the dry season. The reason was obviously that in the damp woods or at night a stalking cougar cannot be perceived by human senses. Her own senses could perceive this animal all too plainly,—and the fact suggested unpleasant possibilities.
The animal on the trail behind her was taking no care at all to go silently. He was simply pat-patting along, wholly at his ease. He acted as if the fear that men have instilled in his breed was somehow missing. And that is why she instinctively tried to hurry on the trail.
The step kept pace. For a long mile, up a barren ridge, she heard every step it made. Then, as the brush closed deeper around her, she couldn't hear it at all.
She hurried on, straining to the silence. No, the sound was stopped. Could it be that the animal, fearful at last, had turned from her trail? And then for the first time a gasp that was not greatly different from a despairing sob caught at her throat. She heard the steps again, and they were in the thickets just beside her.