Mortal Engines 1 (Mortal Engines series): Philip Reeve

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. The feature film is coming in December 2018!
The first instalment 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.
"No 11-to-16-year-old should miss the superbly imagined debut novel from Philip Reeve" - The Times
"This big, brave, brilliant book combines a thrilling adventure story with endless moral conundrums" - The Guardian