[Sidenote: SAXON INVASION.] Shortly after this, events of great importance took place in Great Britain, and the light of faith disappeared in profound night. In 449, Hengist and Horsa, with their Saxon followers, being invited by the wretched inhabitants to aid them against the cruel ravages of the Picts and Scots, soon turned their swords against the people they had come to assist. Christianity was driven back with the Britons into the mountains of Wales and the wild moors of Northumberland and Cornwall. Many British families remained in the midst of the conquerors, but without exercising any religious influence over them. While the conquering races, settled at Paris, Ravenna, or Toledo, gradually laid aside their paganism and savage manners, the barbarous customs of the Saxons prevailed unmoderated throughout the kingdoms of the Heptarchy, and in every quarter temples to Thor rose above the churches in which Jesus Christ had been worshipped. Gaul and the south of Europe, which still exhibited to the eyes of the barbarians the last vestiges of Roman grandeur, alone had the power of inspiring some degree of respect in the formidable Germans, and of transforming their faith. From this period, the Greeks and Latins, and even the converted Goths, looked at this island with unutterable dread. The soil, said they, is covered with serpents; the air is thick with deadly exhalations; the souls of the departed are transported thither at midnight from the shores of Gaul. Ferrymen, sons of Erebus and Night, admit these invisible shades into their boats, and listen, with a shudder, to their mysterious whisperings. England, whence light was one day to be shed over the habitable globe, was then the trysting-place of the dead. And yet the Christianity of the British isles was not to be annihilated by these barbarian invasions; it possessed a strength which rendered it capable of energetic resistance. [Sidenote: COLUMBA.]