It was getting dark, and a keen wind blew across the ragged pines beside the track, when Jake Foster walked up and down the station at Gardner's Crossing in North Ontario. Winter was moving southwards fast across the wilderness that rolled back to Hudson's Bay, silencing the brawling rivers and calming the stormy lakes, but the frost had scarcely touched the sheltered valley yet and the roar of a rapid throbbed among the trees. The sky had the crystal...