A commercial expedition to a distant star system discovers a pitch-black moon alive with radio activity. Its high-gravity, high-pressure, zero-oxygen environment is deadly to human life, but ripe for exploitation. Under no circumstances can a human survive Shroud's inhospitable surface, but a catastrophic accident forces Juna Ceelander and Mai Ste Etienne to make an emergency landing in a barely adequate escape vehicle. Alone, and fighting for survival, the two women embark on a gruelling journey across land, sea and air in search of salvation.