There are many parents who, whether Christian or not, do not like their kids reading stories of a horror venue whether it be about vampires, werewolves, or mad mass murderers or something equally evil.
However, if you like horror type books, you might try books by Frank Peretti. Some of his books rival Stephen King, especially "The Oath" and "House" which are scary but have good spiritual meaning behind them as well. His stuff is really good. My mother is a big fan of Stephen King, John Saul, and other horror novelists. She, unfortunately is not a Christian, but I send her Peretti's books as gifts and she does love them. See if you can read them as they are by a Christian pastor and author.