The waterwheel was twice a man’s height, wider than a man’s two stretched arms. The timbers, braced and bolted with rusty iron were heavy, hand-hewn, swollen with a century of wet. Moss bearded the paddles, which dripped as they rose. The sounds were good. Wooden stutter like children running down a hall at the end of school. Grudging axle thud like the heartbeat of a strong old man.