Before dictators and emperors, Rome was ruled by kings. On the verge of losing his right to inherit the throne, Lucius Tarquin embarks on a murderous plan to depose his uncle the king and take the throne for himself. But a man who rules by fear must also live in fear, and a prophecy that foretold the end of his dynasty's right to rule troubles Lucius greatly. He must know where the danger to him and his family lies and stop them before they can act against him. But who is his greatest enemy? The gods who can withdraw their favour on a whim? Or the people of Rome who refuse to be oppressed by him any longer?