The Ides of March by Valerio Massimo Manfredi
March, 44 BC. Rome, in all her glory, has expanded her territories beyond the wildest dreams of her citizens, led by Caius Julius Caesar - Pontifex Maximus, dictator perpetuo, invincible military leader and only fifty-six years old. He is a man in command of his destiny, who wields enormous power throughout the vast empire. However his god-given mission - to end the blood-splattered fratricidal wars, reconcile implacably hostile factions and preserve Roman civilization and world order - is teetering dangerously close to collapse... His power is draining away. None of his supporters can stop the inexorably evolving plot against him and prophecy will explode into truth on the Ides of March and the world will change forever.
This is political thriller laced through with all the intrigue and action surrounding one of the most crucial turning points in the history of western civilization.