For some strange reason, there are still thousands of people who dig for scary novels even if they are sure to get goose bumps or even can't sleep at night.
That's why you do have a market should you be interested in creating one.
All you need to know is how to write a scary novel.
1.
Consider the different aspects of your book.
It's the characters and the setting that would usually bring the "horror" mood into your story.
You could make use of fearful creatures such as vampires, ghouls, and ghosts as your protagonists or antagonists.
You can set the environment in an abandoned home, in a faraway land, hell, or any place known to be too scary.
2.
Research on what your target audience is fascinated about and scared of at the same time.
One of the primary reasons why scary novels sell is because they feed on the fantasy of readers while making them sit at the edge of their seats at all times.
You can look for situations or things that would capture their fantasy and make them scared at the same time.
For example, you can revolve the story about an old haunted house.
People are always curious about these kinds of abode, but they are scared of the stories associated with them.
3.
Be inspired.
You can get inspirited from the works of famous horror novelists such as Stephen King.
Observe what makes his stories gripping and chilling.
You don't need to copy his style, but you can use it to give you an idea on how to make your novel as equally riveting as his.
4.
Read and rewrite.
Read it as if you're the reader.
If you're not scared of it, then there's a good chance that nobody will be.
It may then mean that you have to rewrite certain parts of it, perhaps create darker settings.