The fourth in Luke Pearson’s acclaimed series of magical adventures starring Hilda, our favourite blue-haired heroine – now in paperback! Hilda stumbles upon Tontu, a lost house spirit. Plunged into the secret world of the Nisse, Hilda discovers hidden passages that only the house spirits can navigate… and something has been ransacking them all! Will Tontu find his true home? And could this all be linked to reports of an elusive beast haunting the city?