The book that came back with a note

Found it in the returns bin: a copy of The Heart Is a Lonely Hunter with a Post-it on page 173. Just three words: 'This is me.' No name, no date. I’ve been staring at it all afternoon. The ink’s slightly smudged, like someone wrote it while crying or in a hurry. I don’t know who left it, but I kept the book. Not because I need to return it, but because I can’t bear to let go of the quiet confession.