This is book number 3 in the Pepper Kane Mystery series.
A spirited ex-reporter questions her deepest beliefs and desires while rushing to learn who killed a woman in the long-abandoned cabin of a famous writer--a riverfront gem she and a fellow horsewoman hoped to turn into a guest ranch. The timing couldn't be worse: She's preparing for a major horse show and trying to save her tack store, The Best Little Horsehouse in Oregon. But when she receives a death threat and, with her Lakota-police partner, finds shocking evidence related to Indian adoptions, she shifts into overdrive. Unless she IDs the killer, her dreams--and life--will go up in flames.