02:50More or LessHarry Potter: How Many Wizards?BBC World Service Duration: 9 minutes Tue 5th Jun 2018, 02:50 on BBC World Service West and Central AfricaAvailable for over a yearListen nowFans have long debated - just how many wizards live among us? Show more GenresFactualFormatsMagazines & ReviewsBrandMore or Less Source: BBC Online