Snowbird felt very glad of her intimate, accurate knowledge of the whole region of the Divide. In her infancy the winding trails had been her playground, and long ago she had acquired the mountaineer's sixth sense for traversing them at night. She had need of that knowledge now. The moon was dim beneath thin clouds, and the lantern she carried did not promise much aid. The glass was rather smoked from previous burnings, and its flame glowed dully and threatened to go out altogether. It cast a few lame beams on the trail beneath her feet; but they perished quickly in the expanse of darkness.

She slipped into her free, swinging stride; and the last beams from the windows of the house were soon lost in the pines behind her. It was one of those silent, breathless nights with which no mountaineer is entirely unacquainted, and for a long tune the only sound she could hear was her own soft tramp in the pine needles. The trees themselves were motionless. That peculiar sound, not greatly different from that of running water which the wind often makes in the pine tops, was entirely lacking. Not that she could be deceived by it,—as stories tell that certain tenderfeet, dying of thirst in the barren hills, have been. But she always liked the sound; and she missed it especially to-night.

She felt that if she would stop to listen, there would be many faint sounds in the thickets,—those little hushed noises that the wild things make to remind night-wanderers of their presence. But she did not in the least care to hear these sounds. They do not tend toward peace of mind on a long walk over the ridges.

The wilderness began at once. Whatever influence toward civilization her father's house had brought to the wilds chopped off as beneath a blade in the first fringe of pines. This is altogether characteristic of the Oregon forests. They are much too big and too old to be tamed in any large degree by the presence of one house. No one knew this fact better than Lennox himself who, in a hard winter of four years before, had looked out of his window to find the wolf pack ranged in a hungry circle about his house. Within two hundred yards after she had passed through her father's door, she was perfectly aware that the wild was stirring and throbbing with life about her. At first she tried very hard to think of other things. But the attempt wasn't entirely a success. And before she had covered the first of the twelve miles, the sounds that from the first had been knocking at the door of her consciousness began to make an entrance.

If a person lies still long enough, he can usually hear his heart beating and the flow of his blood in his arteries. Any sound, no matter how faint, will make itself heard at last. It was this way with a very peculiar noise that crept up through the silence from the trail behind her. She wouldn't give it any heed at first. But in a very little while indeed, it grew so insistent that she could no longer disregard it.

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.

---

Two hours before Snowbird had left the house, on her long tramp to the ranger station, Dan had started home. He hadn't shot until sunset, as he had planned. The rear guard of the waterfowl—hardy birds who spent most of the winter in the Lake region and which had come south in the great flight that had been completed some weeks before—had passed in hundreds over his blind, and he had obtained the limit he had set upon himself—ten drake mallards—by four o'clock in the afternoon. If he had stayed to shoot longer, his birds would have been wasted. So he started back along a certain winding trail that led through the thickets and which would, if followed long enough, carry him to the road that led to the valleys.

He rode one of Lennox's cattle ponies, the only piece of horse-flesh that Bill had not taken to the valleys when he had driven down the livestock. She was a pretty bay, a spirited, high-bred mare that could whip about on her hind legs at the touch of the rein on her neck. She made good time along the trail. And an hour before sunset he passed the only human habitation between the marsh and Lennox's house,—the cabin that had been recently occupied by Landy Hildreth.

He glanced at the place as he passed and saw that it was deserted. No smell of wood smoke remained in the air. Evidently Landy had gone down to the settlements with his precious testimony in regard to the arson ring. Yet it was curious that no word had been heard of him. As far as Dan knew, neither the courts nor the Forest Service had taken action.

He hurried on, four miles farther. The trail entered the heavy thickets, and he had to ride slowly. It was as wild a section as could be found on the whole Divide. Once a deer leaped from the trail, and once he heard Woof grunting in the thickets. And just as he came to a little cleared space, three strange, dark birds flung up on wide-spreading wings.

He knew them at once. All mountaineers come to know them before their days are done. They were the buzzards, the followers of the dead. And what they were doing in the thicket just beside the trail, Dan did not dare to think.

Of course they might be feeding on the body of a deer, mortally wounded by some hunter. He resolved to ride by without investigating. He glanced up. The buzzards were hovering in the sky, evidently waiting for him to pass. Then, mostly to relieve a curious sense of discomfort in his own mind, he stopped his horse and dismounted.

The twilight had started to fall, and already its first grayness had begun to soften the harder lines of forest and hill. And after his first glance at the curious white heap beside the trail, he was extremely glad that it had. But there was no chance to mistake the thing. The elements and much more terrible agents had each wrought their change, yet there was grisly evidence in plenty to show what had occurred. Dan didn't doubt for an instant but that it was the skeleton of Landy Hildreth.

He forced himself to go nearer. The buzzards were almost done, and one white bone from the shoulder gave unmistakable evidence of the passage of a bullet. What had happened thereafter, he could only guess.

He got back quickly on his horse. He understood, now, why nothing had been heard of the evidence that Landy Hildreth was to turn over to the courts as to the activities of the arson ring. Some one—probably Bert Cranston himself—had been waiting on the trail. Others had come thereafter. And his lips set in his resolve to let this murder measure in the debt he had to pay Cranston.

The Lennox house seemed very silent when, almost an hour later, he turned his horse into the corral. He had rather hoped that Snowbird would be at the door to meet him. The darkness had just fallen, and all the lamps were lighted. He strode into the living room, warming his hands an instant beside the fireplace. The fire needed fuel. It had evidently been neglected for nearly an hour.

Then he called Snowbird. His voice echoed in the silent room, unanswered. He called again, then went to look for her. At the door of the dining room he found the note that she had left for him.

It told, very simply and plainly, that her father lay injured in his bed, and he was to remain and do what he could for him. She had gone for help to the ranger station.

He leaped through the rooms to Lennox's door, then went in on tiptoe. And the first thing he saw when he opened the door was the grizzled man's gray face on the pillow.

"You're home early, Dan," he said. "How many did you get?"

It was entirely characteristic. Shaggy old Woof is too proud to howl over the wounds that lay him low, and this gray old bear on the bed had partaken of his spirit.

"Good Lord," Dan answered. "How badly are you hurt?"

"Not so bad but that I'm sorry that Snowbird has gone drifting twelve miles over the hills for help. It's dark as pitch."

And it was. Dan could scarcely make out the outline of the somber ridges against the sky.

They talked on, and their subject was whether Dan should remain to take care of Lennox, or whether he should attempt to overtake Snowbird with the horse. Of course the girl had ordered him to stay. Lennox, on the other hand, said that Dan could not help him in the least, and desired him to follow the girl.

"I'm not often anxious about her," he said slowly. "But it is a long walk through the wildest part of the Divide. She's got nothing but a pistol and a lantern that won't shine. Besides—I've had bad dreams."

"You don't mean—" Dan's words came hard—"that she's in any danger from the animals—the cougars—or the wolves?"

"Barring accidents, no. But, Dan—I want you to go. I'm resting fairly easily, and there's whisky on the table in case of a pinch. Someway—I can't bar accidents to-night. I don't like to think of her on those mountains alone."

And remembering what had lain beside the trail, Dan felt the same. He had heard, long ago, that any animal that has once tasted human flesh loses its fear of men and is never to be trusted again. Some wild animal that still hunted the ridges had, in the last month, done just that thing. He left the room and walked softly to the door.

The night lay silent and mysterious over the Divide. He stood listening. The girl had started only an hour before, and it was unlikely that she could have traversed more than two miles of the steep trail in that time. He could fancy her toiling ever upward, somewhere on the dark ridge that lay beyond. Although the horse ordinarily did not climb a hill more swiftly than a human being, he didn't doubt but that he could overtake her before she went three miles farther. But where lay his duty,—with the injured man in the house or with the daughter on her errand of mercy in the darkness?

Then the matter was decided for him. So faint that it only whispered at the dim, outer frontiers of hearing, a sound came pricking through the darkness. Only his months of listening to the faint sounds of the forest, and the incredible silence of the night enabled him to hear it at all. But he knew what it was, the report of a pistol. Snowbird had met an enemy in the darkness.

He called once to Lennox, snatched the shotgun that still stood where he had placed it in the corner of the room, and hastened to the corral. The mare whickered plaintively when he took her from her food.

---