The Castle of Adventure is the second exciting installment in the Adventure series by Enid Blyton, one of the best-loved children's writers of all time. Why is everyone so afraid of the castle on the hill, and what dark secrets lurk inside its walls? Philip, Dinah, Lucy-Ann, Jack and Kiki the parrot are on holiday in the countryside, staying on the side of Castle Hill. When flashing lights are seen in a distant tower, they decide to investigate - and discover a very sinister plot concealed within its hidden rooms and gloomy underground passages. Discover more titles in the wondrous Adventure series with The Island of Adventure, The Valley of Adventure, The Sea of Adventure, The Mountain of Adventure, The Ship of Adventure, The Circus of Adventure and The River of Adventure