Enid Blyton The Mystery of Banshee Towers: Book 15
 
A brilliant mystery series from bestselling author Enid Blyton, perfect for fans of The Secret Seven. 

Ern is back visiting Mr Goon, which gives him and the Find-Outers the perfect chance to explore Banshee Towers. But there's more secrets to the towers than the screaming banshees. Fatty, Larry, Daisy, Pip, Bets and Buster the Dog have one last case to solve...