The third volume of "The Christians" By This Sign continues the tremendous stories of the oppressed and victimized people of the faith as they endure torture, death, and life sentences in the mines. It takes the Christian story through the reign of Constantine, the first Christian emperor, and ends after his death in A.D. 337. As the church continues to grow, so do the controversies within it. Issues that face the growing church include: forgiveness of apostasy during persecution and torture; the trinitarian debates; the origin of the Arian heresy; and the Council of Nicea. By This Sign describes the creation of the first Christian kingdoms in Armenia and Georgia. The stunning conclusion to this volume has the barbarians at the door.