When a new girl arrives in the Glade—the last one ever—everything changes. She wakes up with no memory, no name, and no clue who she is. Smart, fast, and curious, she quickly proves herself among the Runners, including Thomas, who survived the Maze itself. But the Maze is dangerous, the stings are deadly, and secrets run deeper than anyone realizes. Now, survival means uncovering who she really is… before the Maze decides for her.