He knew that he was the only one of the three who fully realized the horror of their situation.
Mukoki's mind, simple in its reasoning of things that did not belong to the wilderness, had accepted the assurances and explanations of Rod and Wabigoon.

Wabi, half-bred in the wild, felt alarm only in the sense of physical peril.

It was different with the white youth.

What is there in civilization that sends the chill of terror to one's heart more quickly than the presence of a human being who has gone mad?
And this madman was at large! At that very instant he might be listening to their breathing and their whispered words half a dozen feet away; any moment might see the blackness take form and the terrible thing hurl itself at their throats.

Rod, unlike Wabigoon, knew that the powers of this strange creature of the chasm were greater than their own, that it could travel with the swiftness and silence of an animal through the darkness, that perhaps it could smell them and feel their presence as it passed on its way to the plain.