I am working on a novel set in a world like ours but where it is possible to learn the secrets of magic, and supernatural creatures hide from the eye of common people, but exist. The world I am attempting though will have a reality like ours though, still, meaning there are still mature things. My story has lots of cursing, drug and alcohol abuse, sex, and other mature things. There will also be content which will be perhaps offensive to certain religious people. Long story short, it won't be meant for children, definitely not. But how man adults would want to read a supernatural story? And to answer the question of "How supernatural?" there is a bit of a kitchen sink of creatures. Mages, demons, vampires, zombies, werewolves, and even obscure creatures like nucklavee to name a few. The magic doesn't require wands or staves, and it takes concentration and skill to do.