Rome, summer 66AD and Nero's agents mercilessly hunt down the last survivors of the Piso Conspiracy. Yet, despite purging this viper's nest with fire and iron, the increasingly unstable young Emperor feels his grip on power weakening. In Judaea, rebels have bested his army and taken an eagle, in Germania, the Rhenus legions agitate for better conditions. In Hispana, his governor plots. But the most dangerous threat is in the east where Rome's greatest general, Gnaeus Domitius Corbulo, presides over an Empire within an Empire. Is Corbulo preparing to march against Rome and take the purple? Gaius Valerius Verrens, Hero of Rome, is ordered to Antioch with the power of life and death over the soldier he worships. There he finds every man's hand against him and Corbulo's eyes not on Rome, but on a new threat from the Parthian King of Kings, Vologases. Outnumbered, Corbulo marches with Valerius at his side into the barren wastes beyond the Tigris, to meet Vologases in a mighty confrontation that will decide the future of the Empire. In Avenger of Rome, Valerius will face his greatest enemy and his greatest challenge, but neither will be what he believes.