Beautifully written. Sean is again recruited by Martha Ettinger to assist in solving the murders of men found buried on Sphinx Mountain. Katie Sparrow's dog alerts while on another case, and when the group goes to find the grave a sow grizzly with two cubs is disturbed excavating the buried remains. She is not left as Little Feather thinks, as one cub has climbed a tree in fear, and Harold is mauled badly, nearly dying. Sean had taken his tracking course and had learned as a boy. They finda second grave. Sean goes with Katie, and using a metal detector, they unearth a bullet, a very large caliber, along with a wedding ring. It is determined that the men were both terminally ill. Their identities are finally determined, one Aleko Gutierrez, suffering from Valley Fever, and Orvel Webster, suffering from cancer. He had gone hunting and never returned. Both men had attended retreats that were helping terminally ill patients cope with their deaths. It was at these sessions that they had been recruited to participate in an arrangement. Emmitt Cummings, a gentle cowboy, who is himself dying, has been given a book "Stories for Men", in which a short story entitled "The Most Dangerous Game" describes hunting the most dangerous prey...man. He proposes that they hunt one another, the one who is killed experiences "death with honor", rather than the undignified and painful deaths that they face from their various illnesses.
It was ultimately proposed to Cummings by Weldon Crawford, a Montanan congressman, who is also a big game hunter with a very dark side. He intends to eventually take over the "game". Sean meets him and realizes that he both likes and dislikes the man, who has an uncanny way with persuasion and manipulation.
At the same time Sean is recruited by a Liars and Fly Tiers Club to recover two valuable historical ties: the Quill Gorden for which the group had paid $17,500, and the Gray Ghost, tied by Carrie Stevens in the mid 20th century. Through this association with four members: Patrick Willoughby, Polly Sorenson (who is dying of COPD and is being recruited subtly by Crawford), Jonathan Smithy, and Kenneth Winston, Sean will find new fishing friends. Winston is an African American hairdresser with a salon in the South, whom Sean guides. He is one of the top tiers in the country, and intrigues a young boy, Sidney, that Sean befriends. Neither had met a Black fly fisherman.
He will eventually find that Sidney had been trying to get a key to the club's cabin and was caught by Crawford, who took the flies. Crawford hid them in the trap in the buttplate of the rifle used to kill the men, a .470 Nitro Double. His intent was to return them to Polly and recruit him for the game.
During this story Sean also gets up the courage to ask out one of the baristas of Lookers and Lattes, a coffee kiosk that uses scantily clad young women to serve. Martinique agrees to go out with him after he helps her take care of her father's cat that is dying and needs fluid injections. She lives in a converted grain elevator. She is a veterinarian student who will be going to OSU in a short time, but they develop a strong relationship in the meantime.
When they determine that Emmitt Cummings is the killer, Sean goes onto the mountain to stop him. One of the men with whom he had made an arrangement changes his mind. He decides when he is one his way that he has a new lease on the rest of his life. He tells Peach Morris of the arrangement and begins a relationship with Harriet Langhor. Melvin Kauffeld will provide information leading to Sean where Crawford has shot Cummings through his tent. He confronts Crawford, who gets the drop on him, thankfully killed by Martha, who has come to the mountain. She and Harold had found a journal and notes that implicate him and explain his reasons. Then finding the bullet that Cummings carried they find further evidence of the collaboration of Crawford.
This was as good as any mystery I have read. It was clever and creative using the short story and with the philosophizing of Sean while fishing and tracking. He is brilliant at describing nature, especially the river and the trout, the sensuality of fishing.