A brand new book in the bestselling NAUGHTIEST UNICORN series – the funniest unicorn books EVER! The perfect gift for Halloween – and for readers of 7+ and fans of The Worst Witch and Pamela Butchart. It's the SPOOKIEST time of the year at Unicorn School! Mira and Dave the naughtiest unicorn are looking forward to dressing up for trick-or-treating, pumpkin carving and apple bobbing (well, doughnut bobbing for Dave). But when a strange new teacher arrives at school and the other teachers start to DISAPPEAR, Mira and her friends suspect that something SPOOKY is going on. Can they get to the bottom of what's going on, or are they in for a SERIOUSLY SPOOKY SURPRISE? Pip Bird is a children’s author living in London. When she’s not writing magical stories, she dreams of going to Unicorn School and having her own Unicorn Best Friend Forever. The Naughtiest Unicorn series: The Naughtiest Unicorn The Naughtiest Unicorn at Sports Day The Naughtiest Unicorn and the School Disco The Naughtiest Unicorn at Christmas The Naughtiest Unicorn on a School Trip The Naughtiest Unicorn on the Beach The Naughtiest Unicorn and the Spooky Surprise