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...