"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 there 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 Indian' living among the Ojibwa nation, arrived at the post 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. Rainy Lake House weaves together the captivating stories of these three men, who cast their fortunes in different ways with the western fur trade. 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 Indian; imperial, capital, and labor; explorer, trader, and hunter"--From publisher description.