She kept the windows cracked that September morning, the air carrying the burnt sugar of a bakery three blocks over and the distant thrum of the city waking up. Light slanted through the blinds in thin, impatient bars, laying a map of lines across the coffee table where a single photograph lay face-up: two people laughing on a porch, hair caught in motion, a Polaroid timestamped with harsh white numbers—09.21.21—like a breadcrumb left for anyone who might follow.