The air in Riverbend always hung a little heavy. Not with smog, but with the quiet melancholy of a town forgotten. Once, it had buzzed with the rhythm of textile mills and auto parts factories, its main street a vibrant artery of mom-and-pop stores. Now, a decade after the last factory shuttered its doors, Main Street was a ghost town, its storefronts boarded up like vacant eyesores. The only sounds were the rustle of dry leaves and the infrequent hum of a car passing by. Six