Among the Wicked by Linda Castillo
recommended by June
Chief of Police Kate Burkholder goes undercover as a widow in a reclusive Amish settlement in upstate New York to investigate the death of a young girl. As she unearths a world built on secrets and a series of shocking crimes, Kate finds herself trapped and fighting for her life. New setting, unexpected ending, and lots of action makes this one of the better mysteries in this series.