The dog, after uttering this warning note, had rushed out of the hut--which had no door to it--and it was from some place down near the lake that his barking appeared to proceed.
"What can it be ?" was the prompt and _very_ natural inquiry of the three individuals, whom Fritz had so abruptly awakened from their slumbers.
"Something Fritz is frightened at," said Caspar, who knew the dog's nature better than either of the others.

"He don't bark that way at any sort of game that he knows he can conquer.

It's some animal that's a match for him, I warrant.

If the old yak bull were still alive, I should say it was he." "There may be tigers in this valley; I never thought of that," rejoined Karl.

"Now that I do think of it," continued he, drawing upon the reminiscences of his zoological reading, "it is quite probable.