While some mythological creatures and spirits are portrayed as curious and interesting entities, there are some that are much, much darker.

If you’re on the naughty list this year, it’s not jolly old St. Nick you should worry about. Meet Krampus, the real punisher of the Christmas season.

Is that cry that you hear simply an owl calling out? Or could it be a terrifying warning from a banshee that death is on the way?

If you find yourself in Scotland, and come upon a beautiful horse, standing alone near a lake, you’d better be careful not to get too close. It could be a deadly Kelpie.