Here is my first bogeyman (that will appear in Bogeyman 101: A Survival Guide, pub date, August)
Let's start with the troll. Usually found in Scandinavia, he's also made his way to Northern Europe.
He's like a force of Nature, and equally as unpredictable. If a troll is struck by a single beam of sunlight, he'll turn to stone. If he can manage to stay out of the sun, he'll turn into a tree in his old age.