Nineteen-year-old Sadie Hunter has spent her whole life raising her little sister Mattie in a forgotten, dead-end town, shielding her from their addict mother and the men who drift through their lives. So when Mattie is found dead, Sadie's world collapses—and then she disappears, leaving behind her car and a trail no one can follow.
The novel unfolds along two braided tracks. In the first, Sadie tells her own story as she hits the road with a knife and a single, consuming purpose: to hunt down the man she believes killed her sister, whatever it costs her. In the second, months later, a radio producer named West McCray retraces her route for a true-crime podcast called The Girls, interviewing the people Sadie met and trying to find her before it is too late.
Raw, propulsive, and emotionally devastating, Courtney Summers's Sadie is a young-adult thriller about grief, poverty, and the fierce love between sisters, and a sharp interrogation of our appetite for stories about missing girls. Its dual structure builds relentless tension toward an ending that refuses easy comfort.