Pa Kong-Kong is a mysterious man. Nobody knows what he carries in the strange bag on his shoulders, but rumour has it he tortures little thieves, runaways, and naughty children. He lives alone in Ñetty Mbar, a deserted, gloomy market in the suburbs of Dakar where a monstrous dog lurks after dark. It is no place for children, but that won’t stop Binta, a curious and courageous girl who has just drawn the white marble that makes her leader of her kids’ gang. She decides she will go and confront Pa Kong-Kong on his home turf. She’s scared but determined to prove that girls can be leaders. Off she goes. At the market, it is pitch dark. Binta steps forward. What will she discover?