In Enid Blyton's bestselling school series Elizabeth Allen is sent away to boarding school and makes up her mind to be the naughtiest pupil there's ever been. In book four, there's a new boy in Elizabeth's class.

He's sulky and grumpy and he'll do anything to show Elizabeth up.

She means to keep her temper, but it's not so easy for someone who was once the naughtiest girl in the school ... Between 1940 and 1952, Enid Blyton wrote four novels about Naughtiest Girl, Elizabeth Allen.

This edition contains the original text. Both cover and inside illustrations were created by Kate Hindley in 2014.

Bonus material: A rare, complete serial story about a very special school. An interview with Enid Blyton about her school days. Enid Blyton's experiences as a teacher. A timeline of the author's life. Photos from Enid Blyton's younger days.