When his father is killed by a giant evil bear, Torak finds himself on his own for the first time in his life. His father had made him swear to find the Mountain of the World Spirit or die trying. Can Torak find this mystical mountain? Can he trust the clan people that his father had always avoided? And how can he care for this young wolf pup that seems to be so important to his quest? Travel through an ancient world with Torak when you read Wolf Brother by Michelle Paver and continue the journey with Spirit Walker, Soul Eater, and Outcast.