Though she is a member of the Brodie set, Mary is considered by everyone at Blaine, from Miss Lockhart to Miss Brodie herself, to be rather stupid and disagreeable. She is Miss Brodie’s scapegoat, the girl whom she blames everything on, and even Sandy treats her condescendingly and cruelly. Nonetheless, Mary remembers her years as a member of the Brodie set to be the happiest in her life. She dies at the age of twenty-four in a hotel fire.