In this episode, Lucas and Luna explore how Rome's philosopher emperor, Marcus Aurelius, confronted the Antonine Plague that devastated the empire between 165 and 180 AD. Drawing on the writings of the physician Galen, who was in Rome during the outbreak, they discuss the symptoms of smallpox, the death toll estimated at five to ten million, and the social and military chaos that followed. Lucas recounts how Marcus, guided by Stoic principles, maintained composure, enforced quarantine measures, and continued legal reforms even as the plague ravaged the population. Luna asks about the emperor's own fears, and Lucas reads from the Meditations to show how Marcus turned inward, reminding himself of the impermanence of all things. The conversation also touches on the psychological burden of leadership during a crisis, the breakdown of social order, and the long-term impact on the Roman economy and military. They end by reflecting on what Marcus's response says about Stoicism in practice—not as cold detachment, but as disciplined engagement with suffering.