At the staid Marcia Blaine School for Girls, in Edinburgh, Scotland, teacher extraordinaire Miss Jean Brodie is unmistakably, and outspokenly, in her prime. She is passionate in the application of her unorthodox teaching methods, in her attraction to the married art master, Teddy Lloyd, in her affair with the bachelor music master, Gordon Lowther, and—most important—in her dedication to "her girls," the students she selects to be her crème de la crème. Fanatically devoted, each member of the Brodie set—Eunice, Jenny, Mary, Monica, Rose, and Sandy—is "famous for something," and Miss Brodie strives to bring out the best in each one. Determined to instill in them independence, passion, and ambition, Miss Brodie advises her girls, "Safety does not come first. Goodness, Truth, and Beauty come first. Follow me."
And they do. But one of them will betray her.
The character of Miss Jean Brodie was based in part on Christina Kay, a teacher of Spark's for two years at James Gillespie's School for Girls. Spark would later write of her: "What filled our minds with wonder and made Christina Kay so memorable was the personal drama and poetry within which everything in her classroom happened." Miss Kay was the basis for the good parts of Brodie's character, but also some of the more bizarre; for example, Miss Kay did hang posters of Renaissance paintings on the wall, but also of Mussolini and Italian fascists marching. Indeed, it's possible to read the novel as an allegory of Fascism, its fatal allure, and the moral duty to oppose this ideology.