The legends of Peter Niers may be lesser-known than those of Vlad the Impaler or Elizabeth Báthory, but they are no less horrifying. It was said that Niers was a master black magician who could render himself invisible, transform into a cat, a dog, or a goat. It was said that he garnered these powers through the cannibalization of fetuses and he kept the severed hands and feet of infants in a leather pouch at all times. It’s no wonder, then, why the German robber-bandit has since been solidly rooted among some of the worst serial killers in history. This is the tale of the medieval Boogeyman!