"Mars the Avenger" is an historical mystery set in the year 158 CE, during the reign of Antoninus Pius, a period often called the height of the Roman Empire. It is also a daily life in ancient Rome and a sojourn into the world of Roman life, criminal law, police and courts. Marcus Flavius Severus, a judge in the court of the Prefect of the City of Rome, investigates the disappearance of a senator's wife and the finding of the body of a murdered man...