THE DEAD EMPEROR The year is 180 AD. As another long and difficult winter draws to a close on the northern frontier, the Roman emperor Marcus Aurelius lies dying in bed at his military camp in Vindobona (modern-day Vienna). Six days ago he was stricken with a fever, and the symptoms have been worsening rapidly. It’s clear to his physicians that he is finally about to succumb to the great Antonine Plague (probably a strain of smallpox), which has been ravaging the empire for the past fourteen years.