It has long been recognized that the first half of the fourth century was a ‘golden age’ for Roman Britain. This was based on sound foundations from the century before, and continued trends that were emerging in the 270s. ‘Britain in the Late Empire’ charts the events of the fourth century which marked the latter phase of Roman occupation of Britain. The spirit of the age is typified by the great villas of fourth-century Britain. The nadir came in the year 367 when Picts, Scots, and Attacotti invaded Britain. This took the central imperial command and the senior officers responsible for Britain by surprise.