When they decided to canoe down the Maskwa River in northern Canada, best friends Wynn and Jack anticipated leisurely days of paddling and picking blueberries, with nights spent stargazing and reading Western novels, but reports of a wildfire making its way across the territory have added a certain urgency to their journey. Then one night they overhear a man and woman arguing on the foggy riverbank, and in the morning a man appears on the river, paddling alone. Is he the same one they heard? And if so, where is the woman? In this Edgar Award nominee—a Best Book of the Year for London's Observer—Peter Heller unspools a headlong tale of suspense and wilderness survival.