War of the Wolf (The Saxon Stories #11) by Bernard Cornwell

Bernard Cornwell’s epic story of the making of England continues in this eleventh installment in the bestselling Saxon Tales series—"like Game of Thrones, but real" (The Observer)—the basis of the hit Netflix television series The Last Kingdom.

His blood is Saxon 
His heart is Viking 
His battleground is England

And while Uhtred might have regained his family’s fortress, it seems that a peaceful life is not to be – as he is under threat from both an old enemy and a new foe. The old enemy comes from Wessex where a dynastic struggle will determine who will be the next king. And the new foe is Sköll, a Norseman, whose ambition is to be King of Northumbria and who leads a frightening army of wolf-warriors, men who fight half-crazed in the belief that they are indeed wolves.