I Cheerfully Refuse by Leif Enger

Set in a not-too-distant America, I Cheerfully Refuse is the tale of Rainy, an aspiring musician setting sail on Lake Superior in search of his departed, deeply beloved, bookselling wife. An endearing bear of an Orphean narrator, he seeks refuge in the harbors, fogs, and remote islands of the inland sea. After encountering lunatic storms and rising corpses from the warming depths, he eventually lands to find an increasingly desperate and illiterate people, a malignant billionaire ruling class, a crumbled infrastructure, and a lawless society. As his guileless nature begins to make an inadvertent rebel of him, Rainy’s private quest for the love of his life grows into something wider and wilder, sweeping up friends and foes alike in his wake.