“They were conspiring to desert us in the night and steal some of our horses... we engaged a spy.”
Source: Exploratory Travels Through the Western Territories of North America: Comprising a Voyage from St. Louis, on the Mississippi, to the Source of that River, and a Journey Through the Interior of Louisiana, and the North-eastern Provinces of New Spain ; Performed in the Years 1805, 1806, 1807, by Order of the Government of the United States