Mortal Engines by Philip Reeve

… The real enjoyment of Mortal Engines comes from Philip Reeve‘s wonderful creation of an interesting and detailed post-apocalyptic world where colossal cities trundle desolate plains, filled with relics of the Old World — the world as we know it today… the city of London and its layered Tiers is brought to complete and convincing life. Likewise, the cultures found outside the cities are unique and interesting, and once Tom and Hester start out on their journey, its very likely one will be unable to resist exploring with them… Read the rest.