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! Tom and Hester's daughter, Wren, longs to escape the peace of static Anchorage. She craves the dangerous adventures her parents once had - and a charming submarine pirate is ready to take her to sea.

But the mysterious object that she steals for him ignites a conflict that will tear the whole world apart... "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