The Adamantine River Passage (Description on Amazon)

From the darkest days shall rise light and healing. The Adamantine River Passage is a story that delivers redemption and healing for a life shattered by tragedy and subsequent alcoholism. We open with the narrator, Lucas, in a skid row motel along the White River outskirts of Portland as he searches for a way out of darkness in the aftermath of a family tragedy. He finds himself in the company of society's outcasts and sees that he is sliding towards their fallen lives with a sense that he is and must be capable of an escape that they are not. Lucas turns to his family's past, towards the passion he left behind in past life, fly-fishing. Amidst the great tributaries of the American West, the Adamantine River is the place of mythic fly fishing and in the spiritual hinterland of the arid Columbia Basin of Eastern Washington. Turning his back to the steady spiral of alcoholism and his last few possessions, it is here that Lucas travels to find his passage from the darkness that his life has arrived at. Fly rod in hand, he enters the Adamantine River basin in search of that which he left behind and a way forward to the world that still awaits him. What awaits him there is a spiritual awakening that will either drive him forever into darkness or save him from it.

https://www.amazon.com/dp/1988214130/ref=cm_sw_r_cp_ep_dp_gnEizbJV0K6ZK