Millie is the wife of Mr Crocker-Harris. She is a thin woman in her late thirties. But she dresses smartly and speaks confidently. As she enters the school premises, she stands for a while behind a curtain to overhear the conversation between Taplow and Frank. Even if she has heard them, she gives no hint of it. She is quite unlike her harsh husband. She is kind and gentle. She tells Taplow to go and enjoy himself. But the boy dare not cut Crocker-Harris. So she finds an excuse to free him. She asks him to go to the chemist to bring some medicines for his master. She smilingly agrees to take the blame on herself if Crocker-Harris is angry. Thus, she outshines all the other three characters in the story.