For, the Romans being gone, and the Britons being much reduced in numbers by their long wars, the Picts and Scots came pouring in, over the broken and unguarded wall of Severus, in swarms. They plundered the richest towns, and killed the people; and came back so often for more booty and more slaughter, that the unfortunate Britons lived a life of terror. As if the Picts and Scots were not bad enough on land, the Saxons attacked the islanders by sea