The year is 1867. Winter has just tightened its grip on Dove River, a tiny isolated settlement in the Northern Territory, when a man is brutally murdered. Laurent Jammett had been a voyageur for the Hudson Bay Company before an accident lamed him four years earlier. The same accident afforded him the little parcel of land in Dove River, land that the locals called unlucky due to the untimely death of the previous owner. A local woman, Mrs. Ross, stumbles upon the crime scene and sees the tracks leading from the dead man's cabin north toward the forest and the tundra beyond. It is Mrs. Ross's knock on the door of the largest house in Caulfield that launches the investigation. Within hours she will regret that knock with a mother's love -- for soon she makes another discovery: her seventeen-year-old son Francis has disappeared and is now considered a prime suspect.