Yanis, 15, left his home in La Ferté-Gaucher on Sunday March 24. He asked his mother for permission to go to the Coulommiers Cheese and Wine Fair where he was to meet some friends.

Since then, apart from two text messages the next day, she has had no further news. “I hope he didn’t have a bad encounter. I just want my child back,” says the mother of five children, who refuses to wait for the teenager to return with her arms crossed.