“Run!” yelled Jerry; “run for the cabin!”

Running was out of the question, but the boys did the next best thing.

Turning around, they fled up the passage on all fours, momentarily expecting to feel the claws of their enemy. Six arms and six legs revolved wildly. Jerry held grimly to the lantern, and it’s friendly light showed the way.

But ere the lads were half the distance to the storehouse, the hungry beast was bounding after them, screeching hideously at every jump.

In sheer desperation Jerry wheeled around, and saw the ugly head almost within reach of his arms. Terror prompted him to try a last device. He lifted the lantern and let it drive with all his might.

It struck the catamount on the foreshoulders, bounced off and rolled in the snow. There was a sudden puff, an explosion and a dash of burning oil in all directions. Then a series of hisses, and utter darkness.

On went the boys, groping blindly from side to side. The angle at the storehouse bothered them, and they fell together in a confused heap. Somehow or other they got disentangled, and by pure luck Hamp and Jerry hit the tunnel and made good time toward the next curve.

Brick was not so fortunate. He went head first into the storehouse, and only discovered the mistake when his arms struck the rocky sides of the cavity.

There was no time to retreat, for he heard, close by, an angry snarl from the catamount. With almost the swiftness of a lightning-flash he remembered that there was a smaller cavity beyond the storehouse proper. Could he squeeze into it?

He did not stop to consider, but plunged forward at once. He found the hole, and in a trice his arms and head were through. The rest was a tight fit, but he kicked and scrambled, paying no heed to bruises or lacerations. At last his legs were free, and he dropped down between the rocks.