Wren and her father Tom Natsworthy travel the Bird Roads in their airship, trying to forget Hester's betrayal. But in the ruined wreckage of the city of London they make a discovery that changes everything. And Hester faces an implacable foe with the means and the will to destroy the entire human race.

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. Now, in time for the film debut, the critically acclaimed MORTAL ENGINES quartet is repackaged with a fantastic and eye-catching cover featuring new artwork.