She tripped upon a branch and fell to her knees, and the butt of the rifle which she had clung to, struck her sharply in the side.

"Oh! if I had only learned to use a gun!" gasped the distracted girl. "Could I shoot straight enough to do any good, if I tried? Or would I kill the poor dog?"

At the moment Reno expressed something beside rage in his yelping.
He sprang out of the cloud of snow-spray with an agonized cry, and
Ruth saw that there was blood upon his jaws, and a great gash high up
on one shoulder.

"Oh! the poor fellow! Poor Reno!" gasped Ruth Fielding. "He will be killed by that hateful brute."

Spurred by this thought she did not rise from her knee, but threw the barrel of the gun forward. It chanced to rest in the crook of a branch—the very branch over which she had tripped the moment before. She drew the butt of the gun close to her shoulder; she drew back the hammer and tried to sight along the barrel. Suddenly she saw the tawny side of the panther directly before her—seemingly it was at the end of the rifle barrel.

The beast was crouching to leap. Ruth did not know where Reno then was; but she could hear him whimpering. The mastiff had been sorely hurt and the panther was about to finish him.

And with this thought in her mind, Ruth steadied the rifle as best she could and pulled the trigger. The sharp explosion and the shriek of the panther seemed simultaneous. Through the little drift of smoke she saw the creature spring; but it did not spring far. One hind leg hung useless—there was a patch of crimson on the beaten snow—the huge cat, snarling and yowling, was going around and around, snapping at its own leg.

But that flurry was past in a moment. The snow-dust subsided. Ruth had sprung to her feet, dropping the rifle, delighted for the moment that she should have shot the panther.

But she little knew the nature and courage of the beast. On three legs only the huge cat writhed across the clearing, having spied the girl; and now, with a fierce scream of anger, it crouched to spring upon Ruth. She seemed devoted to the panther's revenge, for she was smitten with that terror which shackles voice and limb.

"Oh, Reno! Reno!" she whispered; but the sound did not pass her own lips. The dog was not in sight He lay somewhere in the bushes, licking his wounds. The fierce panther had bested him, and now crouched, ready to spring upon the helpless girl.