Rome, in 30 A.D. Only one man can bring down Seianus, the commander of the Praetorian Guard who has usurped all power in Rome: the Thracian priest Rhotekes. Only one man can secretly bring him to Rome: Vespasian, from whom the traitor once escaped during the suppression of the Thracian uprising. Vespasian overcomes fortress walls. Ambushes in snowy mountains. Pirates on the high seas. Seianus' spies. But the worst danger lurks in the heart of the Roman Empire itself, in the squalid court of Tiberius, the paranoid and dissolute Emperor of Rome.