But by an effort he rallied his nerve and put forth another burst of speed.

The next instant he felt his hands touch the rocks in front of him. Almost simultaneously the leader of the wolves, a great, gaunt beast, fully shoulder high among his brethren, leaped at the boy.

But the jump fell short. With a savage snarl of disappointment, the great gray wolf fell back, while Sandy, with the strength of desperation, clambered upward among the rocks.

The leader of the wolves, a great, gaunt beast, leaped at the boy.

CHAPTER XXV—HEMMED IN BY WOLVES.

Panting, almost at the limit of his strength, with torn hands and rent garments, the lad clambered upward among the rocks. They had seemed large at a distance. Now they appeared to be veritable mountains of boulders. But they were rough and afforded a fair foothold, except where windblown snow had obscured their surfaces and made them slippery and treacherous.

After five minutes of climbing, Sandy rested for a time and paused to look down below him. The wolves were apparently taken aback by his successful evasion of their fangs. The leaders were seated on their gaunt haunches gazing hungrily up at him, while behind them the rest of the pack moved uneasily about. The boy could see the steam of their hot breaths as they panted, their red tongues lolling far out and their sharp, tiger-like teeth exposed.

Their wicked little yellow eyes were fixed steadfastly upon the boy, who looked down upon them from the shoulder of a great rock. He was safe for the time being, and Sandy took advantage of the respite to rally his faculties.

Although he was temporarily secure from the pack, his position was still about as bad as it could be. He was practically marooned on the rocky island in the snows until the pack should see fit to withdraw, or until some other game drew their attention from him.