The Mystery of the Hidden House is a book from one of Enid Blyton's many mystery series, such as The Five Find-Outers and Dog or The Secret Seven. The plot would center on a group of children who discover an abandoned, secretive dwelling—the "Hidden House." They would investigate its past, encountering peculiar clues, suspicious characters, and potentially unraveling a long-lost secret involving treasure or a crime. The book is a classic Blyton mystery, focusing on the children’s bravery and deduction skills.
