In the 780s northern Britain was dominated by two great kingdoms; Pictavia, centred in north-eastern Scotland and Northumbria which straddled the modern Anglo-Scottish border. Within a hundred years both of these kingdoms had been thrown into chaos by the onslaught of the Vikings and within two hundred years they had become distant memories. This book charts the transformation of the political landscape of northern Britain between the eighth and the eleventh centuries. Central to this narrative is the mysterious disappearance of the Picts and their language and the sudden rise to prominence...