In August 1863, during Kit Carson's roundup of the Navajo, Santa Fe's Provost Marshal, Major Joseph Cummings, is found dead in an arroyo near what is now the Hubbell Trading Post in Ganado, Arizona. The murder, as well as the roughly million of today's dollars in cash and belongings in his saddlebags, is historically factual. Carson's explanation that he was shot by a lone Indian, which, even today, can be found in the U.S. Army Archives, is implausible. Who did kill Carson's ''brave and lamented'' Major? The answer may be revealed in this Western murder mystery based in history about a group of con artists operating in 1861-1863 in the New Mexico and Arizona Territories.