Magic

The world was once a magical place, governed by magical creatures- vampires, witches, and werewolves. Now it is just a shell of what was. Now that world is governed by humans who refuse to believe that we creatures are real. Before humans, we creatures were many, now we are few. Before humans, we could walk the streets and have every living thing know what we are.
Witches could use magic on the streets and not be burned to death at the stake. Vampires wouldn't have to go into hiding for centuries to make people think they had grown old and died, just to reappear with a different name, past, as well as likes and dislikes. Werewolves could walk around in their wolf forms without being shot at.
But that world is in the past. The present world is governed by humans and controlled by their fear. Their fear of being weaker than us. Their fear that we want to rule them. Their fear that we are here to bring about their destruction.
Then again, that changed some time ago. With one Witch and one Werewolf. With Libby Jane O'hara and Samuel Lee Cambria.