McKinley says she writes about strong heroines because she feels very strongly about the potential for girls to be "doing things", and she feels that the selection of fantasy literature featuring girls is scarce and unsatisfactory. According to biographer Marilyn H. Karrenbrock, "McKinley's females do not simper; they do not betray their own nature to win a man's approval. But neither do they take love lightly or put their own desires before anything else. In McKinley's books, the romance, like the adventure, is based upon ideals of faithfulness, duty, and honor."