One summer's day in 2056 in the mountains of southern France, a warning siren goes off: inside the belly of the receding glacier above the spa-centre village, a large pocket of water is about to give way-just as it did 150 years earlier. Hundreds of people died in the floods that followed. My Sister is a novel about the ancestral fear of environmental disaster, and the narrator Lucie's fear for her twin sister Clemence, who has returned to the village after a thirty-year absence. The two women shelter together beneath the glacier, waiting for the worst, surviving on dwindling supplies. Day by day, Clemence becomes more controlling of Lucie, as the ultimate catastrophe looms over them. My Sister is a spine-chilling story of sibling rivalry. Emmanuelle Salasc offers us a profound examination of the future of our relationship with nature-and of those close to us.