The small man was breaking trail. Down almost to his knees in the soft snow, he sank at every step; yet ever he dragged a foot painfully upward, and made another forward plunge. The snowshoe thong, jagged with ice, chafed him cruelly. The muscles of his legs ached as insistently as if clamped in a vice. He lurched forward with fatigue, so that he seemed to be ever stumbling, yet recovering himself.

"Come on there, you darned little shrimp; get a move on you," growled the big man from within the frost-fringed hood of his parka.

The little man started as if galvanised into sudden life. His breath steamed and almost hissed as it struck the icy air. At each raw intake of it his chest heaved. He beat his mittened hands on his breast to keep them from freezing. Under the hood of his parka great icicles had formed, hanging to the hairs of his beard, walrus-like, and his eyes, thickly wadded with frost, glared out with the furtive fear of a hunted beast.

"Curse him, curse him," he whimpered; but once more he lifted those leaden snowshoes and staggered on.

The big man lashed fiercely at the dogs, and as they screamed at his blows he laughed cruelly. They were straining forward in the harness, their bellies almost level with the ground, their muscles standing out like whalebone. Great, gaunt brutes they were, with ribs like barrel-staves, and hip-bones sharp as stakes. Their woolly coats were white with frost, their sly, slit-eyed faces ice-sheathed, their feet torn so that they left a bloody track on the snow at every step.

"Mush on there, you curs, or I'll cut you in two," stormed the big man, and once again the heavy whip fell on the yelling pack. They were pulling for all they were worth, their heads down, their shoulders squared. Their breath came pantingly, their tongues gleamed redly, their white teeth shone. They were fighting, fighting for life, fighting to placate a cruel master in a world where all was cruelty and oppression.

For there in the Winter Wild pity was not even a name. It was the struggle for life, desperate and never-ending. The Wild abhorred life, abhorred most of all these atoms of heat and hurry in the midst of her triumphant stillness. The Wild would crush those defiant pigmies that disputed the majesty of her invincible calm.

A dog was hanging back in the harness. It whined; then as the husky following snapped at it savagely, it gave a lurch and fell. The big man shot forward with a sudden fury in his eyes. Swinging the heavy-thonged whip, again and again he brought it down on the writhing brute. Then he twisted the thong around his hand and belaboured its hollow ribs with the butt. It screamed for a while, but soon it ceased to scream; it only moaned a little. With glistening fangs and ears up-pricked the other dogs looked at their fallen comrade. They longed to leap on it, to rend its gaunt limbs apart, to tear its quivering flesh; but there was the big man with his murderous whip, and they cowered before him.

The big man kicked the fallen dog repeatedly. The little man paused in his painful progress to look on apathetically.

"You'll stave in its ribs," he remarked presently; "and then we'll never make timber by nightfall."

The big man had failed in his efforts to rouse the dog. There in that lancinating cold, in an ecstasy of rage, despairfully he poised over it.

"Who told you to put in your lip?" he snarled. "Who's running this show, you or I? I'll stave in its ribs if I choose, and I'll hitch you to the sled and make you pull your guts out, too."

The little man said no more. Then, the dog still refusing to rise, the big man leapt over the harness and came down on the animal with both feet. There was a scream of pitiful agony, and the snap of breaking bones. But the big man slipped and fell. Down he came, and like a flash the whole pack piled onto him.

For a moment there was a confused muddle of dogs and master. This was the time for which they had waited, these savage semi-wolves. This man had beaten them, had starved them, had been a devil to them, and now he was down and at their mercy. Ferociously they sprang on him, and their white fangs snapped like traps in his face. They fought to get at his throat. They tore at his parka. Oh, if they could only make their teeth meet in his warm flesh! But no; they were all tangled up in the harness, and the man was fighting like a giant. He had the leader by the throat and was using her as a shield against the others. His right hand swung the whip with flail-like blows. Foiled and confused the dogs fell to fighting among themselves, and triumphantly the man leapt to his feet.

He was like a fiend now. Fiercely he raged among the snarling pack, kicking, clubbing, cursing, till one and all he had them beaten into cowering subjection.

He was still panting from his struggle. His face was deathly pale, and his eyes were glittering. He strode up to the little man, who had watched the performance stolidly.

"Why didn't you help me, you dirty little whelp?" he hissed. "You wanted to see them chew me up; you know you did. You'd like to have them rip me to ribbons. You wouldn't move a finger to save me. Oh, I know, I know.

I've had enough of you this trip to last me a lifetime. You've bucked me right along. Now, blast your dirty little soul, I hate you, and for the rest of the way I'm going to make your life hell. See! Now I'll begin."

The little man was afraid. He seemed to grow smaller, while over him towered the other, dark, fierce and malignant. The little man was desperate. Defensively he crouched, yet the next instant he was overthrown. Then, as he lay sprawling in the snow, the big man fell to lashing him with the whip. Time after time he struck, till the screams of his victim became one long, drawn-out wail of agony. Then he desisted. Jerking the other on his feet once more, he bade him go on breaking trail.

Again they struggled on. The light was beginning to fail, and there was no thought in their minds but to reach that dark belt of timber before darkness came. There was no sound but the crunch of their snowshoes, the panting of the dogs, the rasping of the sleigh. When they paused the silence seemed to fall on them like a blanket. There was something awful in the quality of this deathly silence. It was as if something material, something tangible, hovered over them, closed in on them, choked them, throttled them. It was almost like a Presence.

Weary and worn were men and dogs as they struggled onwards in the growing gloom, but because of the feeling in his heart the little man no longer was conscious of bodily pain. It was black murder that raged there.

With straining sinews and bones that cracked, the dogs bent to a heavy pull, while at the least sign of shirking down swished the relentless whip. And the big man, as if proud of his strength, gazed insolently round on the Wild. He was at home in this land, this stark wolf-land, so callous, so cruel. Was he not cruel, too? Surely this land cowered before him. Its hardships could not daunt him, nor its terrors dismay.

As he urged on his bloody-footed dogs, he exulted greatly. Of all Men of the High North was he not king?

At last they reached the forest fringe, and after a few harsh directions he had the little man making camp. The little man worked with a strange willingness. All his taciturnity had gone. As he gathered the firewood and filled the Yukon stove, he hummed a merry air. He had the water boiling and soon there was the fragrance of tea in the little tent. He produced sourdough bread (which he fried in bacon fat), and some dried moose-meat.

To men of the trail this was a treat. They ate ravenously, but they did not speak. Yet the little man was oddly cheerful. Time and again the big man looked at him suspiciously. Outside it was a steely night, with an icicle of a moon. The cold leapt on one savagely. To step from the tent was like plunging into icy water, yet within those canvas walls the men were warm and snug. The stove crackled its cheer. A grease-light sputtered, and by its rays the little man was mending his ice-stiffened moccasins. He hummed an Irish air, and he seemed to be tickled with some thought he had.

"Stop that tune," growled the other. "If you don't know anything else, cut it out. I'm sick of it."

The little man shut up meekly. Again there was silence, broken by a whining and a scratching outside. It was the five dogs crying for their supper, crying for the frozen fish they had earned so well. They wondered why it was not forthcoming. When they received it they would lie on it, to warm it with the heat of their bodies, and then gnaw off the thawed portions. They were very wise, these dogs. But to-night there was no fish, and they whined for it.

"Dog feed all gone?"

"Yep," said the small man.

"Hell! I'll silence these brutes anyway."

He went to the door and laid onto them so that they slunk away into the shadows. But they did not bury themselves in the snow and sleep. They continued to prowl round the tent, hunger-mad and desperate.

"We've only got enough grub left for ourselves now," said the big man; "and none too much at that. I guess I'll put you on half-rations."

He laughed as if it was the hugest joke. Then rolling himself in a robe, he lay down and slept.

The little man did not sleep. He was still turning over the thought that had come to him. Outside in the atrocious cold the whining malamutes crept nearer and nearer. Savage were they, Indian raised and sired by a wolf. And now, in the agonies of hunger, they cried for fish, and there was none for them, only kicks and curses. Oh, it was a world of ghastly cruelty! They howled their woes to the weary moon.

"Short rations, indeed," mumbled the little man. He crawled into his sleeping bag, but he did not close his eyes. He was watching.

About dawn he rose. An evil dawn it was, sallow, sinister and askew.

The little man selected the heavy-handled whip for the job. Carefully he felt its butt, then he struck. It was a shrewd blow and a neatly delivered, for the little man had been in the business before. It fell on the big man's head, and he crumpled up. Then the little man took some rawhide thongs and trussed up his victim. There lay the big man, bound and helpless, with a clotted blood-hole in his black hair.

Then the little man gathered up the rest of the provisions. He looked around carefully, as if fearful of leaving anything behind. He made a pack of the food and lashed it on his back. Now he was ready to start.

He knew that within fifty miles, travelling to the south, he would strike a settlement. He was safe.

He turned to where lay the unconscious body of his partner. Again and again he kicked it; he cursed it; he spat on it. Then, after a final look of gloating hate, he went off and left the big man to his fate.

At last, at long last, the Worm had turned.

CHAPTER X

The dogs! The dogs were closing in. Nearer and nearer they drew, headed by a fierce Mackenzie River bitch. They wondered why their master did not wake; they wondered why the little tent was so still; why no plume of smoke rose from the slim stovepipe. All was oddly quiet and lifeless.

No curses greeted them; no whiplash cut into them; no strong arm jerked them over the harness. Perhaps it was a primordial instinct that drew them on, that made them strangely bold. Perhaps it was only the despair of their hunger, the ache of empty bellies. Closer and closer they crept to the silent tent.

Locasto opened his eyes. Within a foot of his face were the fangs of a malamute. At his slight movement it drew back with a snarl, and retreated to the door. Locasto could see the other dogs crouching and eyeing him fixedly. What could be the matter? What had gotten into the brutes? Where was the Worm? Where were the provisions? Why was the tent flap open and the stove stone-cold? Then with a dawning comprehension that he had been deserted, Locasto uttered a curse and tried to rise.

At first he thought he was stiff with cold, but a downward glance showed him his condition. He was helpless. He grew sick at the pit of his stomach, and glared at the dogs. They were drawing in on him. They seemed to bulk suddenly, to grow huge and menacing. Their gleaming teeth snapped in his face. He could fancy these teeth stripping the flesh from his body, gnawing at his bones with drooling jaws. Violently he shuddered. He must try to free himself, so that at least he could fight.

Grimly the Worm had done his work, but he had hardly reckoned on the strength of this man. With a vast throe of fear Locasto tried to free himself. Tenser, tenser grew the thongs; they strained, they bit into his flesh, but they would not break. Yet as he relaxed it seemed to him they were less tight. Then he rested for another effort.

Once again the gaunt, grey bitch was crawling up. He remembered how often he had starved it, clubbed it until it could barely stand. Now it was going to get even. It would snap at his throat, rip out his windpipe, bury its fangs in his bleeding flesh. He cursed it in the old way. With a spring it backed out again and stood with the others. He made another giant effort. Once again he felt the thongs strain and strain; then, when he ceased, he imagined they were still looser.

The dogs seemed to have lost all fear. They stood in a circle within a few feet of him, regarding him intently. They smelled the blood on his head, and a slaver ran from their jaws. Again he cursed them, but this time they did not move. They seemed to realise he could not harm them.

With their evilly-slanted eyes they watched his struggles. Strange, wise, uncanny brutes, they were biding their time, waiting to rush in on him, to rend him.