Citing many examples, he defines "terror" as the suspenseful moment in horror before the actual monster is revealed. "Horror," King writes, is that moment at which one sees the creature/aberration that causes the terror or suspense, a "shock value".
Terror is usually described as the feeling of dread and anticipation that precedes the horrifying experience. By contrast, horror is the feeling of revulsion that usually follows a frightening sight, sound, or otherwise experience.