 This continues until Justin Vigneras, the piano teacher she was originally meant to study with but who was away at the beginning of the term, comes back.Katherine adores him, and is gratified that there is finally someone at school who understands and supports her passion for music and her need to practice.She also learns to get along better with her peers after the arrival of Sarah Courmont, a girl she previously met briefly on her seventh birthday in New York; the two begin to form an intense friendship.