It didn't sound dangerous: Lou Ryderson's mission was to get proof that an Indian agent was cheating the Indians out of their government-issue supplies at the Wind River Reservation. But Lou soon ran into trouble when he discovered that an Indian girl, Kim, had been kidnapped.
Used availability for Terrell L Bowers's Battle at Lost Mesa
May 2002 : UK Hardback
June 2003 : UK Paperback
April 2016 : USA, Canada, UK Kindle edition