This year also witnessed a terrible instance of tragic heartlessness. Before the senate appeared two men called Vibius Serenus - a son prosecuting his father. The father, dragged back from exile, dirty and shabby and now manacled, had to face the charges of his elegant, brisk young son. Informer and witness in one, he accused his father of plotting against the emperor. Subversive agents, he explained, had been sent to the Gallic rebellion from Spain; funds had been provided b