The Bone Orchard by Paul Doiron

Mike Bowditch has left the Maine Warden Service and now works as a fishing guide for tourists. When his mentor and friend, Kathy Frost, is shot and left in a coma, Mike wonders if someone was taking revenge for Kathy killing a young war veteran in self-defense--or if the motive lies somewhere else. While Mike's persistence in pursuing who was responsible for Kathy's injuries is admirable, his recklessness might get him killed. In this fifth book of the series, the backdrop of the Maine outdoors is on full display. It's another great read by Doiron.  The Bone Orchard will be published in July.