Case of the Peculiar Pink Fan, Paperback by Springer, Nancy, ISBN 0142415170, ISBN-13 9780142415177, Brand New, Free shipping in the US

While fourteen-year-old Enola Holmes endeavors to save her friend Lady Cecily Alistair from an unwelcome arranged marriage, she meets with some assistance from her older brother, Sherlock, and interference by the eldest, Mycroft.