"Rolling Back the River is a lyrical and unflinching journey through wild streams, wild hearts, and the wilderness of loss. With humor, heart, and hard-earned wisdom, Paul Guernsey reminds us that the rivers we love—and the lives we build—can never flow backward." —Joshua Caldwell, fly fisher, director of the feature film Mending the LineWhile fly-fishing on a remote river in southern Argentina, a veteran outdoor writer from Maine finds himself swept into a cascade of bizarre events, all connected to an enigmatic, billionaire environmentalist and his cosmopolitan twin nieces.Vincent Mapp, former adventure-traveling editor-in-chief for an international fly-fishing magazine, now leads a life centered around teaching at a small Maine environmental college and obsessively fishing his home waters for just about anything that swims. But after his wife of many years abruptly upends his world by ditching him for someone who doesn't fish all...