In my opinion, this is one of the more fascinating of Colin Fletcher's very enjoyable writings. While pursuing an on-going project of walking the length of the Colorado River, Fletcher discovered a lonely cave in Nevada with evidence that a remarkable individual had called it home sometime in the early part of the century. Fletcher wondered who this could have been, and what had led him to this very out-of-the-way location (as Colin Fletcher himself had been led there). Years of research and discovery, aided by a not inconsequential amount of dumb luck, led Fletcher to the most probable identity of the cave dweller, and he also learned much about American history along the way. This book is a real-life mystery; it is a biography of "Chuckawalla Bill" Simmons and of Colin Fletcher himself; and like all of Colin Fletcher's books, it is also a work of philosopy. Not surprisingly, the "Man From the Cave" proves to be a man very much like Colin Fletcher himself.