Lucy Harper keeps people alive for a living. She's less good at doing it for herself. Her boyfriend orders her coffee wrong and she drinks it anyway. Her best friend sees everything and says almost nothing. Her notebook stays hidden. Her playlist plays low - one voice on repeat, a girl she's never met, a song that makes her slow down when everything else tells her to keep performing. Something in her is still alive. Barely. But still. Before Lucy meets Billie Eilish, she has to survive herself first. Paper Thin is the first book in The 30th series - a slow burn that starts in the wreckage.