"The Night World isn't a place. It's all around us. The creatures of the Night World are beautiful and deadly and irresistible to humans. Your best friend could be one - so could your crush.
The laws of Night World are very clear: humans must never learn that Night World exists. And members of the Night World must never fall in love with a human. Violate the laws and the consequences are terrifying." [[(c) L.J. Smith - Night World; Volume 1]]
-Vampires
-Witches (types one and two)
-Werewolves
-The Elders that rule them
They exist today. Believe it or not, the reason you don't know for sure is above. The Night People are offended by posers, so don't be one. They hide in the darkness because humans will know they are different. Some face the days as any human would. Despite the sun, or extra hair. Witches have no problems with being out amongst the humans. Never mock them or you'll be sorry.
This has been posted as a warning. Let it be know that they are real.