April 8, 2021 The opening of “Subdivision,” J. Robert Lennon’s new novel, might be familiar to anyone who’s checked into a bed-and-breakfast. Familiar, and yet off a little off. “At the guesthouse, I was invited to come downstairs anytime and work on the puzzle,” the unnamed protagonist begins, describing a massive jigsaw puzzle that her hosts, Clara and the Judge, seem to be more interested in than her. “The ladies had not yet given me a key or even revealed which room I would be staying in; indeed, showing me the puzzle had been their top priority upon welcoming me at the door.”