AD 255—the Roman imperium is stretched to the breaking point, its authority and might challenged throughout the territories and along every border. One man is sent to marshal the defenses of a lonely city and to shore up the crumbling walls of a once indomitable symbol of Roman power, a man whose very name means war: a man called Ballista. So unfolds an epic drama — a stor AD 255—the Roman imperium is stretched to the breaking point, its authority and might challenged throughout the territories and along every border. One man is sent to marshal the defenses of a lonely city and to shore up the crumbling walls of a once indomitable symbol of Roman power, a man whose very name means war: a man called Ballista. So unfolds an epic drama — a story of empire, heroes, treachery, courage, and most of all, of brutal, bloody warfare.