Many of us know the story of the Pied Piper: The man in the brightly colored clothes who could make rats and mice follow him just by playing a flute. But many don't know the second, darker part to the story where children were led away from their homes by that same man and his flute, never to be heard from again. But was it just a story told to children to teach them a lesson? Or did something dark and sinister actually happen to the real-life children of Hamelin?