Tribune Cato and Centurion Macro, hardened veterans of the Roman army, have faced the Empire's enemies from Britannia to Parthia, from Hispania to Judea. Now once again they are on a mission that will imperil their lives and those of all who serve with them. Loyal to the last to their comrades in battle, fearless in the face of the most brutal or barbaric opponents, they are the finest men the Emperor can call on in the service of Rome.