ISBN-13: 9780141032290 / Angielski / Miękka / 2009 / 448 str.
A.D. 255. The Roman Imperium is stretched to breaking point, its authority challenged along every border. The most lethal threat lurks far to the east in Persia, where the forces of the Sassanid Empire loom with fiery menace. One man is sent to marshall the defences - a man whose name itself means war, a man called Ballista.