In my case, it came down to two authors; Susan Hill and Edgar Allan Poe. Personally I find them really good as they know how to make a creepy atmosphere in their writings. I remember that while reading TheWoman in Black, Susan Hill had this thing about describing things in such a way that I almost felt that I could see, smell and experience everything that happened. Edgar Allan Poe is after all Edgar Allan Poe and he is a champion in his own right when it comes to creepy tales. Don't even get me started on him, as I've analysed several of his works while at university.