Darrell has left Malory Towers and her sister Felicity takes over as head girl. But the other girls are determined to cause trouble. Will Freddie and June ever stop playing tricks? And what's Amy's strange family secret?
Someone has stolen Julie's horse. And there's money missing too. Can Felicity and the girls find out who would do such a terrible thing?
Susan's in charge of the winter concert, but new teacher, Miss Tallant, won't let her make any decisions. When Miss interferes in a midnight feast, the girls realise that there's a spy in their midst.