This famous and one of the most loved series by Enid Blyton, comprises of eight adventure story books, namley, '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'.
The series has four rather five protagonists e.g. Philip, Jack, Dinah, Lucy-Ann and not to forget Kiki, the adorable pet parrot of Jack. The children get drawn into a series of adventures, puzzles and mysteries and solve much of them without any adult assistance!
It would be interesting to mention here that the author penned these series in less than a week, though the publishing of these same series spanned nearly a decade!!