Death Runs Downhill

A herd of goats lies dead in a wadi with no wound on them, and bush pilot Anja Botha is the only one asking why. Flying survey grids over Namibia's Kaokoveld to keep her ancient twin in the air, she uncovers a pressurised reservoir of poison gas sleeping beneath the continent's biggest copper mine—and a single colossal blast scheduled to crack its lid. The company wants her data, her silence, and her gone. Nine thousand people sleep downhill.