camp had ceased. Men had leaped into life. Fifteen dogs were straightening in the tandem trace of a single sledge.

Dolores laughed, a sobbing, broken laugh, that in itself was a cry of despair. "Peter, if they come up with us, what shall we do?"

"If they overtake us," said Peter, "give me the revolver. It is fully loaded?"

"I have cartridges—"

For the first time she remembered that she had not filled the three empty chambers. Crooking her arm under the gee-bar, she fumbled in her pocket. The dogs, refreshed by their sleep and urged by Uppy's whip, were tearing off the first mile at a great speed. The trail ahead of them was level and hard again. Uppy knew they were on the edge of the big barren of the Lacs Delesse, and he cracked his whip just as the off runner of the sledge struck a hidden snow-blister. There was a sudden lurch, and in a vicious up-shoot of the gee-bar the revolver was knocked from Dolores' hand—and was gone. A shriek rose to her lips, but she stifled it before it was given voice. Until this minute she had not felt the terror of utter hopelessness upon her. Now it made her faint. The revolver had not only given her hope, but also a steadfast faith in herself. From the beginning she had made up her mind how she would use it in the end, even though a few moments before she had asked Peter what they would do.

Crumpled down on the sledge, she clung to Peter, and suddenly the inspiration came to her not to let him know what had happened. Her arms tightened about his shoulders, and she looked ahead over the backs of the wolfish pack, shivering as she thought of what Uppy would do could he guess her loss. But he was running now for his life, driven on by his fear of her unerring marksmanship—and Wapi. She looked over her shoulder. Wapi was there, a huge gray shadow twenty paces behind. And she thought she heard a shout!

Peter was speaking to her. "Blake's dogs are tired," he was saying. "They were just about to camp, and ours have had a rest. Perhaps—"

"We shall beat them!" she interrupted him. "See how fast we are going, Peter! It is splendid!"

A rifle-shot sounded behind them. It was not far away, and involuntarily she clutched him tighter. Peter reached up a hand.

"Give me the revolver, Dolores."

"No," she protested. "They are not going to overtake us."

"You must give me the revolver," he insisted.

"Peter, I can't. You understand, I can't. I must keep the revolver."

She looked back again. There was no doubt now. Their pursuers were drawing nearer. She heard a voice, the la-looing of running Eskimos, a faint shout which she knew was a white man's shout—and another rifle shot. Wapi was running nearer. He was almost at the tail of the sledge, and his red eyes were fixed on her as he ran.

"Wapi!" she cried. "Wapi!"

His jaws dropped agape. She could hear his panting response to her voice.

A third shot—over their heads sped a strange droning sound.

"Wapi," she almost screamed, "go back! Sick 'em, Wapi—sick 'em—sick 'em—sick 'em!" She flung out her arms, driving him back, repeating the words over and over again. She leaned over the edge of the sledge, clinging to the gee-bar. "Go back, Wapi! Sick 'em—sick 'em—sick 'em!"

As if in response to her wild exhortation, there came a sudden yelping outcry from the team behind. It was close upon them now. Another ten minutes.

And then she saw that Wapi was dropping behind. Quickly he was swallowed up in the starlit chaos of the night.

"Peter," she cried, sobbingly. "Peter!"

Listening to the retreating sound of the sledge, Wapi stood a silent shadow in the trail. Then he turned and faced the north. He heard the other sound now, and ahead of it the wind brought him a smell, the smell of things he hated. For many years something had been fighting itself toward understanding within him, and the yelping of dogs and the taint in the air of creatures who had been his slave-masters narrowed his instinct to the one vital point. Again it was not a process of reason but the cumulative effect of things that had happened, and were happening. He had scented menace when first he had given warning of the nearness of pursuers, and this menace was no longer an elusive and unseizable thing that had merely stirred the fires of his hatred. It was now a near and physical fact. He had tried to run away from it—with the woman—but it had followed and was overtaking him, and the yelping dogs were challenging him to fight as they had challenged him from the day he was old enough to take his own part. And now he had something to fight for. His intelligence gripped the fact that one sledge was running away from the other, and that the sledge which was running away was his sledge—and that for his sledge he must fight.

He waited, almost squarely in the trail. There was no longer the slinking, club-driven attitude of a creature at bay in the manner in which he stood in the path of his enemies. He had risen out of his serfdom. The stinging slash of the whip and his dread of it were gone. Standing there in the starlight with his magnificent head thrown up and the muscles of his huge body like corded steel, the passing spirit of Shan Tung would have taken him for Tao, the Great Dane. He was not excited—and yet he was filled with a mighty desire—more than that, a tremendous purpose. The yelping excitement of the oncoming Eskimo dogs no longer urged him to turn aside to avoid their insolent bluster, as he would have turned aside yesterday or the day before. The voices of his old masters no longer sent him slinking out of their way, a growl in his throat and his body sagging with humiliation and the rage of his slavery. He stood like a rock, his broad chest facing them squarely, and when he saw the shadows of them racing up out of the star-mist an eighth of a mile away, it was not a growl but a whine that rose in his throat, a whine of low and repressed eagerness, of a great yearning about to be fulfilled. Two hundred yards—a hundred—eighty—not until the dogs were less than fifty from him did he move. And then, like a rock hurled by a mighty force, he was at them.

He met the onrushing weight of the pack breast to breast. There was no warning. Neither men nor dogs had seen the waiting shadow. The crash sent the lead-dog back with Wapi's great fangs in his throat, and in an instant the fourteen dogs behind had piled over them, tangled in their traces, yelping and snarling and biting, while over them round-faced, hooded men shouted shrilly and struck with their whips, and from the sledge a white man sprang with a rifle in his hands. It was Rydal. Under the mass of dogs Wapi, the Walrus, heard nothing of the shouts of men. He was fighting. He was fighting as he had never fought before in all the days of his life. The fierce little Eskimo dogs had smelled him, and they knew their enemy. The lead-dog was dead. A second Wapi had disemboweled with a single slash of his inch-long fangs. He was buried now. But his jaws met flesh and bone, and out of the squirming mass there rose fearful cries of agony that mingled hideously with the bawling of men and the snarling and yelping of beasts that had not yet felt Wapi's fangs. Three and four at a time they were at him. He felt the wolfish slash of their teeth in his flesh. In him the sense of pain was gone. His jaws closed on a foreleg, and it snapped like a stick. His teeth sank like ivory knives into the groin of a brute that had torn a hole in his side, and a smothered death-howl rose out of the heap. A fang pierced his eye. Even then no cry came from Wapi, the Walrus. He heaved upward with his giant body. He found another throat, and it was then that he rose above the pack, shaking the life from his victim as a terrier would have shaken a rat. For the first time the Eskimos saw him, and out of their superstitious souls strange cries found utterance as they sprang back and shrieked out to Rydal that it was a devil and not a beast that had waited for them in the trail. Rydal threw up his rifle.