Eli followed the book’s quieter instructions and, in doing so, felt the city unfold like a book’s margins filling in ink. He started to leave stories in return—notes on café napkins, a doodle tucked inside a magazine at the train station, a photograph of the bakery owner with a caption that read simply: You matter. Once he taped a page of the Book of Love to a lamppost, its blank white glowing under the streetlight like a hint. That night a woman found it and left a reply on the lamppost: Thank you. The book, if it listened, would have felt pleased.