Meridian Brown is thrilled when her parents send her to boarding school. However, it is not all as exciting as she hoped. The terrifying headmaster, Major Rodwell, has rules that include 'No having fun'. Meridian makes friends with Daisy, taking her new friend on adventures to spy on Major Rodwell. But she soon learns there is more to be afraid of than just the headmaster, like the ghastly Punchin...What is the Punchin? And will Meridian and her friends be able to unravel the secrets that Major Rodwell has been keeping from the staff and students? Follow Meridian on her quest to discover the truth and to rid the school of its evil headmaster.