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 seven, the Famous Five investigate spook trains in the dead of night. The trains seem to vanish into thin air, but where do they go? The Five discover an unusual underground tunnel system and a secret train-service.If they follow the tracks, will they solve the mystery?This edition features the original cover art and inside illustrations by Eileen Soper.