The Pied Piper of Hamelin is the titular character of a legend from the town of Hamelin, Lower Saxony, Germany. The legend dates back to the Middle Ages, the earliest references describing a piper, dressed in multicolored clothing, who was a rat-catcher hired by the town to lure rats away with his magic pipe.
The moral of the story is that one should never break the promise and should always keep their word.
