This book was written from the diary of a real life United States Marshal who served from 1863 to late 1870's. The names and places were changed per agreement with the owner of the original material. 1866, United States Marshal Frank Landcaster is involved in a mystery that involve massacre, Indians, land grabbing, and commancheros. Getting the evidence on the mastermind behind this scheme is the problem. Going undercover to get it is the danger.