The kelpie is a monster right out of Celtic myth. The creature can take on multiple shapes, but usually it appears in the form of a horse.
The kelpie galloped around Ireland, looking like a lost pony, attempting to trick women and children into riding on it. But the strange thing about this pony is that its mane would always be dripping with water.
If a woman hopped on, the monster would then run into the water, drowning its victim, and then would take her to its lair to eat her.
The Irish demon would sometimes transform into a handsome man to lure women to its trap, but a telltale sign that it was a kelpie was if that “man” had kelp in its hair.
Ladies, take note – meet a guy with seaweed on his head on Halloween night, don’t go home with him!