
They escape from the Green Storm (an offshoot of the Anti-Traction League), in the Jenny Hanniver which used to belong to Anna Fang, and end up on Anchorage which is a large but sparsely populated city. The city is ruled by Freya Rasmussen, a margravane (a sort of prophet or oracle, although the word originally comes from a German title), who is in charge of the city but not sure what to do until Tom and Hester arrive with Professor Pennyroyal. They set off for the Dead Continent - USA, which according to Professor Pennyroyal who has been there, is a veritable paradise.
Less "action packed" than Mortal Engines, I thought that this novel was better and explored Tom and Hester's feelings much better as they have now grown up.