Beth Groundwater is a new author for me. I have read 2 RM mysteries and will others. Mandy is a ranger for the Arkansas Headquarters Recreational Area (AHR There is a lot of information of the work the rangers do. RM is a combination of her boy friend and her first initial. White water rafting and fly fishing is the major activity of the area.
Mandy is on river patrol watching the rafters. A boat collapses and there people to recuse. Her partner heads for the woman and Mandy goes to help the man. He is unconscious. There is a problem getting the man a shore. She later learns he has been murdered. A close friend is a suspect and Mandy must find the answer to save her friend.