You are using a browser that is not supported by this website may not work correctly. Please try using Chrome, Safari, Firefox, Edge or Opera.
We use cookies to ensure the website functions properly. These, for example, will keep you logged in, will track performance and can be used for marketing purposes. Read more about our cookies or choose which cookies you accept on this page.
Schooldays at St Clare's are never dull for twins Pat and Isabel O'Sullivan in Enid Blyton's much-loved boarding school series.
In book nine the unimaginable has happened - the twins made head girl! It's a tough job - cheeky first formers and cruel Priscilla keep the girls on their toes.
It's the twins last year and there definitely will be mischief!
(P) 2017 Hodder Children's Books