The girls are back at Deepdean for a new term and the new Head Girl, Elizabeth Hurst who is a well known bully, fond of secrets and good at using them to get her own way. None of the girls are surprised when she ends up dead and now the school is in chassis and Daisy and Hazel have to find the culprit and try to ensure that they don't get away with it.
The story is getting a bit stretched in school but it's entertaining.