He trembled after it was gone.
Many a time in the evening they saw muskrats in the eddies, and once they glimpsed a black, shiny something like a monstrous leech rolling up and down as it travelled in the stream.

Quonab whispered, "Otter," and made ready his gun, but it dived and showed itself no more.

At one of the camps they were awakened by an extraordinary tattoo in the middle of the night--a harsh rattle close by their heads; and they got up to find that a porcupine was rattling his teeth on the frying-pan in an effort to increase the amount of salt that he could taste on it.

Skookum, tied to a tree, was vainly protesting against the intrusion and volunteered to make a public example of the invader.

The campers did not finally get rid of the spiny one till all their kitchen stuff was hung beyond his reach.
Once they heard the sharp, short bark of a fox, and twice or thrice the soft, sweet, moaning call of the gray wolf out to hunt.