Then afar, it seemed, there sounded the night cries of wild animals, timber wolves, those dreaded monsters of the lupus tribe, and occasionally the scream of the cougar, like a woman in agony. Then, close behind her shelter, there sounded a horrible, snarling shriek. It was the night cry of a bobcat close at hand, attracted to the camp by the scent of the meat which had been cooked for supper.

It was so near and clear that for a moment Stella's heart seemed to stop beating altogether, and she felt as if she would suffocate, and buried her face in her hands, expecting every moment to feel the claws of the terrible animal sink into the flesh of her back.

But at the sound Silver Face leaped to his feet, and was coming swiftly around the fire.

Through the silver mask his eyes were gleaming wickedly.

Stella heard him, and looked up. He was standing before her at the corner of her shelter, his blank face turned toward the place from which the cat's cry had come.

Suddenly a strange thing happened. From the breast of the black garment worn by Silver Face leaped a flame, followed by the crash of a revolver. This was succeeded by another, and a third.

The sleeping men had been aroused, and were sitting up in their blankets, blinking stupidly.

Behind her shelter Stella heard a thrashing among the frozen underbrush, while Silver Face stood immovable, the blazing eyes in the mask staring in that direction.

Meanwhile, Stella was marveling at those shots which had seemed to spring from his very body, and without the apparent use of his hands.

But soon the noise in the brush ceased, and Silver Face stepped out of sight.