"Oh, I reckon they scent some animal prowling around outside," remarked the trapper, making for the door.

"Good gracious! I hope now it ain't that same old skunk come back because he's changed his mind!" exclaimed Bandy-legs, glancing hastily around, as if to see where he could hide.

The trapper, however, seemed to know that there was no danger along those lines. He took down the bar, and, throwing open the door, stepped out.

As he did so there was a sudden vicious snarl that thrilled the boys, and then the dogs bounded out with a chorus of wild barks.

[!-- CH10 --]

CHAPTER X.

THE TRAIL OF THE CLOG.

The excitement was tremendous for the time being, with the barking of the two dogs and the cries of the boys.

All of them had heard that savage snarl as Trapper Jim stepped out.

"Was it a bobcat?" demanded Steve, who had been wise enough to snatch up his gun before following the trapper out of the door.