Elizabeth is desperate to play the piano in the end of school concert. Only one student can be chosen and her rival Arabella is practising hard! Elizabeth knows Arabella is very good - so she spends every waking minute practising. But exams are looming, and piano practice leaves Elizabeth with no time to revise . . . Will the Naughtiest Girl have to stay in First Form another year? Bonus material in these new editions include: 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.