We walked until the sun leaned in and the day softened. Naomi bought a paperback—another one, not the same as the dog-eared volume she had on the bus—and left it in my hands as we sat on a bench in a park. "For when you want to get lost on purpose," she said. The book was thin and smelled of type and glue. Inside, she had written a sentence in small, exact handwriting: For when you need the map to forget the map. She refused to let me give it back.