The Valley of Adventure is the third thrilling instalment in the Adventure series by Enid Blyton, one of the best-loved children's writers of all time. Nothing could be more exciting than a daring night flight on Bill's plane! But Philip, Dinah, Lucy-Ann, Jack and Kiki the parrot soon find themselves flying straight into a truly amazing adventure. Who are the two strange pilots, and what is the secret treasure hidden in the lonely and mysterious valley where the children land? Discover more books in the wonderous Adventure series with The Island of Adventure, The Castle of Adventure, The Sea of Adventure, The Mountain of Adventure, The Ship of Adventure, The Circus of Adventure and The River of Adventure .