Jim’s fear of his father is worth examining. He isn’t afraid of the old man’s temper or physical stature, but of what he thinks his father might bring out in him. In other words, he understands that violent temperaments and pessimistic worldviews are contagious, knowing that they can “infect” people and even lay waste to “the world” at large. Considering that
Fly Away Peter takes place during and leading up to World War I, Jim’s desire to avoid this kind of personal darkness foreshadows the sweeping, contagious nature of the world-wide darkness soon to come.