Do Fantasy and Martial Arts mix (in a book) <><><>?

In my opinion, ANYTHING mixes in a book. I've put so many weird things together in the stories in my head. I'm not sure if it is an original mix, but I know for sure that it is a good mix. I'm sure that this story will turn out great no matter what! I think they work out perfect together. That's a great idea for a book. Hope it turns out great!