I just read a book by Bill Ectric titled "Tamper." This novel is a little different then those I have read previously but I know you will enjoy it.
The main character is very obsessed with the paranormal research including strange noises coming from the basement of his home where he lives with his parents. He begins drug use and seeing a psychiatrist during the 1970s and later with his friends decides to search for a mystery writer as the mystery continues to grow. Is he insane or is it real?
The ending to the story is not what you expect but I won't "Tamper" with that. Check out Bill Ectric's novel "Tamper."