The first picture book from the best-selling author of Uncle Montague's Tales of Terror, Chris Priestley, brought to life with incredible cinematic flair by Mariachiara DiGiorgio, winner of the Carnegie Shadowers' Choice Awards for Illustration.

When Grace's teacher, Miss Flytrap, asks her class, "Who knows the way to Mr Grimly’s classroom?" Grace puts her hand up straight away. "Me, Miss. I know the way, Miss!" But Grace is new to the school and she doesn't, in fact, know the way. Not one bit. She doesn't even know who Mr Grimly is. Undeterred, she sets off. But she could never have imagined just how treacherous, wild and epic the journey to his classroom would be, with twists and turns waiting around every dark and gloomy corner... Will Grace ever find Mr Grimly's classroom?