“Focuses on three men from vastly different backgrounds and serves as a vehicle for exploring the rigors of the fur trade . . . lyrical and transcendent.” —American Historical Review In September 1823, three men met at Rainy Lake House, a Hudson’s Bay Company trading post near the Boundary Waters. Dr. John McLoughlin, the proprietor of Rainy Lake House, was in charge of the borderlands west of Lake Superior, where he was tasked with opposing the petty traders who operated out of US territory. Major Stephen H. Long, an officer in the US Army Topographical Engineers, was on an expedition to explore the wooded borderlands west of Lake Superior and the northern prairies from the upper Mississippi to the forty-ninth parallel. John Tanner, a white man living among the Ojibwa nation, arrived in search of his missing daughters, who, Tanner believed, were at risk of being raped by the white traders holding them captive at a nearby fort. Drawing on their combined experiences, Theodore Catton creates a vivid depiction of the beautiful and dangerous northern frontier from a collision of vantage points: American, British, and Indigenous; imperial, capital, and labor; explorer, trader, and hunter. At the center of this history is the deeply personal story of John Tanner’s search for kinship: first among his adopted Ojibwa nation; then in the search for his white family of origin; and finally in his quest for custody of his multiracial children. “Written with clarity and energy, this book tells its story through the remarkable device of a triple biography.” —Gregory Evans Dowd, author of Groundless