There were subtle differences between the Bundle of 1925 and that of 1929. Despite such consistent traits as her fast driving, she was seen as more mature in the second novel. For example, Lomax, who, in "The Secret of Chimneys" had dismissed her as "charming, simply charming, but quite a child", reminded her father, in "The Seven Dials Mystery", that "she is no longer a child. She is a very charming and talented woman"; and, of course, by then, Lomax wished to marry her. Bundle's role was, in any case, more central in "Seven Dials"; despite Battle's crucial contribution, she was clearly the heroine and intended to be so.