Welcome to Aberfal Boys High School. Independent jewel of academic and sporting excellence in the South-west until the headmaster is murdered in his study. And now the Year Seven School Mums’ WhatsApp Group really do have something to talk about. Clare Withoutani: OMG have you heard about Newhall?!!! Becky Rupertsmum: Helen-Louise just texted. Can’t believe it. Asha: Not heard anything. What’s happened? Pam Geoffreysmum: What’s he done this time? They’re going co-ed, aren’t they? I knew this would happen. Clare Withoutani: Can’t believe it, Becky. I’m in shock. Pam Geoffreysmum: Are we going co-ed? Becky Rupertsmum: No, Pam. Newhall died. Pam Geoffreysmum: Oh GOD. Seriously??!! Can’t believe it. So sad. He’ll be such a loss to the school. The boys will be devastated. Will the school be offering grief counselling? Rose Oliversmum: Anyone know what pages they’re meant to do for chemistry? Ollie’s homework diary says ‘do questions 1-4’ but no page numbers! As the resulting police investigation reveals more and more of Aberfal’s long-hidden secrets the list of suspects who wanted the headmaster dead grows by the day. And far from being a glittering jewel of exclusivity and excellence, it would appear Aberfal Boys High School is rotten to its core.