Junius Silanus further stated that several persons had heard Cethegus say that three consuls and four praetors were to be slain; Piso, also, a person of consular dignity, testified other matters of like nature; and Caius Sulpicius, one of the praetors, being sent to Cethegus's house, found there a quantity of darts and of armor, and a still greater number of swords and daggers, all recently whetted. At length, the senate, decreeing indemnity to the Crotonian upon his confession of the whole matter, Lentulus was convicted, abjured his office (for he was then praetor), and put off his robe edged with purple in the senate, changing it for another garment more agreeable to his present circumstances. He, thereupon, with the rest of his confederates present, was committed to the charge of the praetors in free custody.
It being evening, and the common people in crowds expecting without, Cicero went forth to them, and told them what was done, and then, attended by them, went to the house of a friend and near neighbor; for his own was taken up by the women, who were celebrating with secret rites the feast of the goddess whom the Romans call the Good, and the Greeks, the Women's goddess. For a sacrifice is annually performed to her in the consul's house, either by his wife or mother, in the presence of the vestal virgins. And having got into his friend's house privately, a few only being present, he began to deliberate how he should treat these men. The severest and the only punishment fit for such heinous crimes, he was somewhat shy and fearful of inflicting, as well from the clemency of his nature, as also lest he should be thought to exercise his authority too insolently, and to treat too harshly men of the noblest birth and most powerful friendships in the city; and yet, if he should use them more mildly, he had a dreadful prospect of danger from them. For there was no likelihood that, if they suffered less than death, they would be reconciled, but, rather, adding new rage to their former wickedness, they would rush into every kind of audacity, while he himself, whose character for courage already did not stand very high with the multitude, would be thought guilty of the greatest cowardice and want of manliness.
While Cicero was in doubt what course to take, a portent happened to the women in their sacrificing. For on the altar, where the fire seemed wholly extinguished, a great and bright flame issued forth from the ashes of the burnt wood; at which others were affrighted, but the holy virgins called to Terentia, Cicero's wife, and bade her hasten to her husband, and command him to execute what he had resolved for the good of his country, for the goddess had sent a great light to the increase of his safety and glory. Terentia, therefore, as she was otherwise in her own nature neither tender-hearted nor timorous, but a woman eager for distinction (who, as Cicero himself says, would rather thrust herself into his public affairs than communicate her domestic matters to him), told him these things, and excited him against the conspirators. So also did Quintus his brother, and Publius Nigidius, one of his philosophical friends, whom he often made use of in his most weighty affairs of state.
The next day, a debate arising in the senate about the punishment of the men, Silanus, being the first who was asked his opinion, said, it was fit that they should be all sent to prison, and there suffer the utmost penalty. With him all agreed in order till it came to Caius Caesar, who was afterwards dictator. He was then but a young man, and only at the outset of his career, but had already directed his hopes and policy to that course by which he afterwards changed the Roman state into a monarchy.
When it came Caesar's turn to give his opinion, he stood up and proposed that the conspirators should not be put to death, but their estates confiscated, and their persons confined in such cities in Italy as Cicero should approve, there to be kept in custody till Catiline was conquered. To this sentence, as it was the most moderate, and he that delivered it a most powerful speaker, Cicero himself gave no small weight, for he stood up and, turning the scale on either side, spoke in favor partly of the former, partly of Caesar's sentence. And all Cicero's friends, judging Caesar's sentence most expedient for Cicero, because he would incur the less blame if the conspirators were not put to death, chose rather the latter; so that Silanus, also, changing his mind, retracted his opinion, and said he had not declared for capital, but only the utmost punishment, which to a Roman senator is imprisonment. The first man who spoke against Caesar's motion was Catulus Lutatius. Cato followed, and so vehemently urged in his speech the strong suspicion about Caesar himself, and so filled the senate with anger and resolution, that a decree was passed for the execution of the conspirators. But Caesar opposed the confiscation of their goods, not thinking it fair that those who had rejected the mildest part of his sentence should avail themselves of the severest. And when many insisted upon it, he appealed to the tribunes, but they would do nothing; till Cicero himself yielding, remitted that part of the sentence.