Meet Julian, Dick, Anne, George and Timothy. Together they are THE FAMOUS FIVE - Enid Blyton's most popular adventure series. All 21 titles also available as audiobooks!In book eleven, the Famous Five are on an adventurous holiday in horse-drawn caravans. They discover a ruined castle that looks deserted. But is that a face at the window? Or is it a trick of the light?Just who is hiding in the castle?This edition features the original cover art and inside illustrations by Eileen Soper.