They started with a single key. It fit into a lock that led not to an extra bedroom or a guest suite, but to a tiny studio above an old bookstore at the corner of Maple and Fifth. It was modest, with a single window that caught the afternoon light and a radiator that clanked like a contented grandfather. The walls were scuffed, the floorboards groaned, and the place smelled faintly of paper and lemon oil—perfect.