E. X. Ferrars cannot be considered one of the major innovators of detective fiction. Nevertheless, she had a solid core of admirers, who included the late Anthony Boucher, mystery reviewer for The New York Times. Her work was in the classic British tradition: The principal characters belong to the upper or the middle class, great emphasis is placed on intricate plotting, and the story aims principally at unraveling a puzzle. In contrast to many other classic authors, Ferrars was an excellent analyst of character, and her stories often turn on psychological points. She avoided depicting violence in any detail; her style is clear and efficient, with an occasional resort to literary quotation.