Have you ever laid in bed at night, then saw a vague human-like silhouette.
When you're young, they scare you, and you turn on the light. Only to find out that it's something like a chair.
Buuuuttttt, what you don't know is that they're actually not a chair, or any object that vaguely looks like a human, they're 'shadow vanishes'.
If they're dangerous or what their intentions are, is still unknown.
We don't even know where they come from, or what they actually are.
And this can only be explained by *~~**Magic*~~**

Sleep tight kids ;)