A Girl is a Half-formed Thing, Eimear McBride’s acclaimed, prize-winning debut, felt like a one-off, not the beginning of a career. Its prose style — a staccato, Beckettian rush — was a good match for the subject of burgeoning womanhood amid grief and exploitation. But it was also very intense — so much so that before the novel’s end the language started to break apart, as if McBride had, with her very first book, reached beyond the limits of her voice.