"The Spirit of the Border: A Romance of the Early Settlers in the Ohio Valley" by Zane Grey is based on events occurring in the Ohio River Valley in the late eighteenth century. It features the exploits of Lewis Wetzel, a historical personage who had dedicated his life to the destruction of Native Americans and to the protection of nascent white settlements in that region. The story deals with the attempt by Moravian Church missionaries to Christianize Indians and how two brothers' lives take different paths upon their arrival on the border.