Over the years, Stephen King has set his many horror stories in different places, but there are some that appear quite often and have become characters themselves, such as the towns of Derry and Castle Rock, in Maine. The story of Derry’s origins is the reason behind the evil that literally lives in it, but why do so many bad things happen in Castle Rock as well? The fictional town of Castle Rock first appeared in the 1979 novel The Dead Zone, and it has since been used as the primary setting or has simply been casually mentioned in other stories by King.