Blevins, Winfred. Rivers of the West #2

"A spiritual quest becomes a wild adventure...A would-be priest, Dylan Campbell signs up with Nor'West Company to bring God to the Indians. But as he travels across the mighty Saskatchewan in the company of a mystical wanderer called the Druid, he witnesses acts of violence, carnality, and evil he never thought possible. Meeting a beautiful woman at Fort Augustus and a white-bearded enemy among the fierce and bloody Piegan Indians, Dylan learns what it means to brawl and scratch and struggle for life in refuge of the legendary High Missouri--utilizing mind, body, and soul. An adventurer's story told like never before, the Rivers of the West saga follows those compelled by the evocative grasp of the untamed frontier, looking to carve out a place in America's most awe-inspiring backcountry" -- from amazon.com