The global perfume industry is worth billions. Some luxury brands sell for hundreds of dollars a bottle. But BBC Eye Investigations has discovered that, when the sun goes down in Egypt, there is a hidden human cost to this industry. In the summer of 2023, the BBC visited four different locations in Egypt’s main jasmine-growing area, Al Gharbia, and found children - some as young as five - working at night to pick the jasmine that was supplied to some of the world’s leading perfume brands through factories in Egypt. The UN’s Special Rapporteur on contemporary forms of slavery tells the BBC what it’s uncovered ‘may constitute the worst form of child labour’. We hear the story of one family who say they have no choice but to take their children into the jasmine fields to work, in order to earn enough money to live.