Perkoa gold mine in Burkina Faso:
Opio is 13 and has been working breaking rocks and dragging men and bags to the surface for several years. Too young to go down into the galleries and frightened by the underground world, Opio stays at the surface. Every month he earns his living – a bag of stones extracted from the underground. With each bag comes the same excitement and the same hope of wealth, always disappointed by a meagre booty. To ensure a future for Opio, his father would like him to take a vocational training course but unfortunately he cannot afford the school fees. Opio will have to raise the money by himself and the only way to do so is to ask his boss for a promotion: the right to go down into the underground galleries that frighten him so much.