The tale of the Pied Piper of Hamelin did not start as a story, but as a chronicle of a real tragedy. In the city of Hamelin, there is an ancient inscription that reads: 'In the year 1284, on the day of St. John and St. Paul, June 26, 130 children born in Hamelin were taken out of the city by a piper dressed in multicolored clothes and lost at the place of the calvary, near the hills'.

The legend tells that the city was suffering from a rat plague. A strange musician promised to rid them of the rodents in exchange for a sum of money. He played his flute and the rats, hypnotized, followed him to drown in the Weser River. When the citizens, freed from the problem, refused to pay him out of greed and ingratitude, the piper returned on a Sunday while the adults were at mass. This time he played a different melody, and it was the children who followed him, disappearing forever into a mountain.

What really happened? Historians have proposed several dark theories that the legend has sweetened over time. One suggests that the 'Piper' was a recruiter of colonists for the German expansion to the east (Ostsiedlung), taking the young people to found cities in Transylvania or Moravia, a journey from which they never returned. Another theory points to an epidemic (the Black Death or the choreomania/St. Vitus' Dance) that killed the children, with the piper being an allegory of Death. A third theory speaks of the Children's Crusade, where thousands perished or were sold as slaves. Whatever the truth may be, Hamelin was left marked by the trauma of a lost generation. The street where they were last seen is still called 'Bungelosenstrasse' (street without drums), and it is forbidden to play music on it. The Piper is a reminder that broken promises have a price, and sometimes that price is the very future of a community.