"Many generations ago, the Wall was built to hold back the sea. A simple dam, it grew into a vast linear city, home to scholars, builders, and merchants. Northland's prosperity survived wars and unrest--and brought the whole of Europe together. But now darkness is falling. Days grow shorter, temperatures colder, and in the wake of long winters come famine, destruction, and terror. As a mass exodus to warmer climes threatens to fracture Northland,...