Mortal Engines 4. A Darkling Plain

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.
In the fourth and final brilliant installment of Philip Reeve's award-winning
quartet, after twenty years, the devastating world war
between the predatory Traction Cities and their enemies is ending.
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.