Permafrost

The world is a frozen wasteland. Oskar and his sister Mitzi are fleeing south, trying to escape the Northern Raiders who have slaughtered their people. They find sanctuary in a strange city where they are made welcome. But the Northern Raiders have followed, and the city is besieged.

Oskar joins with his new-found friends and takes up arms to help them defend their home. But then he discovers an old diary hidden away in the library. The diary was written at the time of the city’s foundation and reveals the truth about what happened all those years ago – and what caused the world to freeze. Oskar soon realises that there is more than one way for him to save this city.