White Fang trembled with fear, and though the impulse came to crawl out of his hiding-place, he resisted it. After a time the voices died away, and some time after that he crept out to enjoy the success of his undertaking. Darkness was coming on, and for a while he played about among the trees, pleasuring in his freedom. Then, and quite suddenly, he became aware of loneliness. He sat down to consider, listening to the silence of the forest and perturbed by it. That nothing moved nor sounded, seemed ominous. He felt the lurking of danger, unseen and unguessed. He was suspicious of the looming bulks of the trees and of the dark shadows that might conceal all manner of perilous things.