MORTAL ENGINES launched Philip Reeve`s brilliantly-imagined creation, the world of the Traction Era, where mobile cities fight for survival in a post-apocalyptic future, and is now released with a film tie-in cover. The first installment introduces young apprentice Tom Natsworthy and the murderous Hester Shaw, flung from the fast-moving city of London into heart-stopping adventures in the wastelands of the Great Hunting Ground.