It is the year 56 A.D. General Corbulo has assembled an army of twenty thousand men for the war with Parthia. The second Praetorian cohort, under the command of veterans Tribune Cato and Centurion Macron, is ready for battle. However, the auxiliary units, which have not undergone high-quality training and lack good equipment, are not ready. The Romans cannot march until winter at least, because they would face certain defeat. The general decides on a ruse. He sends a messenger led by Cato to the Parthian king to negotiate a peace treaty. However, the conditions proposed by the Roman side are unacceptable to the Parthians, and the real purpose of the mission is to prevent the king from attacking the general's troops with his army for a certain period of time. But the goddess Fortuna seems to have stopped wishing the legionnaires. Cato soon learns firsthand that a more dangerous enemy than the Parthian king is one member of his own entourage. And Macro must stand up in a situation that will be a huge test of his courage and military skill. Traitors of Rome is the eighteenth volume of the author's Eagles of Empire novel series.