One summer evening, the band on the river played a tune that sounded like a question. Tara found herself walking toward it, pockets full of leftover lemon cookies. The crowd was a constellation of domestic constellations—neighbors orbiting their own small planets. She saw Jonas and Lila near the bridge, their laughter now a household sound, and she saw the elderly widower with a woman who read aloud from a book of sea poems. Someone tapped her shoulder.