Monsters are truly amazing. They are just everywhere, from old legends to Hollywood movies. There are the classic ones, the superstars of the monster world: Dracula, zombies, dragons, etc.
You think it has always been just Santa Claus? Think again. Krampus has a demonic appearance: hairy, black, and goat-like The devilish beast usually accompanies Saint Nicholas on Christmas or Yule season.
The saint is busy with the good children, krampus is responsible for the bad and naughty ones. It is not enough these children couldn't get the presents they've wanted, but Krampus would stuff them into its sack and carry them away to his lair. Presumably to devour them during Christmas dinner. The creature's quite as popular as Santa many many years ago but due to its ugly, demonic image, its celebrations pairing with Saint Nicholas was being discouraged and oftentimes prohibited.
Now known as a Scandinavian legend, a huldra is said to be amazingly beautiful seductive creature, almost always naked, but sometimes appearing as an innocent-looking milkmaid. However her back is either made of bark or a hollowed out tree, plus she is sometimes seen with a cow's tail. As the story goes, a huldra appears to men and lures them with her beauty into the forest to have sex with her. She is generous to those who satisfy her lust, but could be deadly to those who does not. But either way, a huldra will see the man just as a mate or a pet, even if he could satisfy the woman, he is still subjected to many more multiple couplings which will eventually exhaust him so much it could lead to death anyway.
Often times, she steals human babies and replaces them with her ugly changeling babies
Zmeus also kidnap girls, in the intention of marrying them, however a knoght in shining armor will always rescue these damsels in the stories, so a zmeu remains single and kidnaps more girls.