Rediscover Enid Blyton's classic adventure with a brand new cover illustrated by Rachael Dean. Rediscover Enid Blyton's classic children's novels, now with a brand new covers illustrated by Rachael Dean. The Castle of Adventure is the second exciting instalment in the beloved Adventure series. 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. Read all eight books in the wonderous Adventure series: The Island of Adventure, The Castle 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.