Who is Beatrice Lacy?

Beatrice is Maxim's sister. Athletic and outspoken, Beatrice initially intimidates the narrator but eventually becomes more supportive. She is introduced when she gives the narrator a set of beautiful art books as a wedding present, takes her to visit Maxim's grandmother, and comforts her after the disaster of the costume ball. Her comment, "You are so very different from Rebecca," is one of the first times that the narrator is directly compared to Maxim's first wife.