Margaret Coel (born October 11, 1937, in Denver, Colorado) is an American historian and mystery writer who lives in Boulder, Colorado.

[1] She graduated in journalism from Marquette University in 1960 and worked on the Boulder Daily Camera.

[3] This series—20 books published from 1995 to 2016—is set in Wyoming's Wind River Reservation and adjacent towns.

[4] The story lines are based on actual crimes and injustices.

[5] Vicky Holden, an Arapaho lawyer, and Father John O'Malley, a Jesuit priest, collaborate to solve these crimes and rectify these injustices.