After the death of Nero, the Druids had come forth from the retreats where they had remained concealed since their proscription by Claudius, and proclaimed that "the Roman Empire was at an end, and that the Gallic Empire was come to its birth." Insurgents rose on every side, and Julius Sabinus assumed the title of Caesar. War broke out; confusion, hesitation, and actual desertion extended through the Colonies, and reached the legions. Several towns submitted to the insurgents. Some legions yielding to persuasion, bribery, or discontent, killed their officers and went over to the rebels. The gravity of the situation was perceived in Rome, and Petilius Cerealis was despatched to crush the revolt. The struggle that ensued was fierce but brief, and Civilis was constrained to surrender. Vespasian being disinclined to drive men or matters to an extremity, pardoned him; but no mercy was to be extended to Julius Sabinus. After the ruin of his cause, Sabinus took refuge underground in one of those retreats excavated in the chalk beneath his villa, and two of his freedmen were alone privy to the secret. The further to conceal him, they set fire to his house, and gave out that he had poisoned himself and that his dead body had been consumed in the flames. His young wife, named Eponia, was in frantic despair at the news; but one of the freedmen informed her of the place of his retreat, and advised her to assume the habit and exhibit the desolation of widowhood, so as to confirm the report they had disseminated. "Well did she play her part," says Plutarch, "in this tragedy of woe." She visited her husband in his cave at night, and left him at daybreak, but at last refused to leave him at all. At the end of seven months, hearing talk of the clemency of Vespasian, she set out for Rome taking her husband with her, disguised as a slave, with shaven head and a dress that rendered him unrecognisable. But friends who were in her confidence dissuaded her from prosecuting the journey. The imperial clemency was not a quality to be calculated upon with confidence. They accordingly returned to their subterranean abode. There they lived for nine years, during which, "as a lioness in her den," says Plutarch, "Eponia gave birth to two young whelps, and suckled them at her own breast." At length they were discovered, and Sabinus and his wife were brought before Vespasian. "Caesar," said Eponia, showing him her children, "I conceived and suckled them in a tomb, that there might be more of us to entreat thy mercy." But the Emperor was not disposed to be clement to one who pretended to inherit the sacred Julian blood, and he ordered Sabinus to be led to the block. Eponia asked that she might die with her husband, saying: "Caesar, do me this grace, for I have lived more happily underground and in darkness than thou hast done in the splendour of thy palace."