An investigation of this kind should have been undertaken by the City Prefect, but Nero put more trust in Tigellinus. In addition, the Christian faith stemmed from the East and its adherents were mostly immigrants from the East. Tigellinus was not interested in religious matters. He simply obeyed orders and turned to the lowest orders in Rome in his researches.
This was not a difficult task. In a single afternoon his minions rounded up about thirty suspected men who willingly admitted that they were Christians and were very surprised when they found themselves immediately arrested and taken to the dungeons of the Praetorium. They were sternly asked whether they had set fire to Rome the previous summer, and this they denied emphatically. Then they were asked whether they knew any other Christians. In all innocence, they gave as many names as they could remember. All the soldiers had to do was to go and fetch the men and women from their homes, and they came without protest.
By nightfall, about a thousand Christians had been rounded up, mostly people from the lowest classes. The soldiers said that all they had had to do was to go into any crowd and call out a question as to whether there were any Christians there, and then these madmen just gave themselves up to be arrested.
Tigellinus was worried by the large numbers of people he had to interrogate. As there was not room for them all, he thought it best to thin them out a little. At first he released all Jews who could show that they were circumcised. He spoke firmly to two members of the Noble Order of Knights who had come with the crowd, and then released them for what he thought was a sensible reason, that one could hardly accuse a Roman knight of setting fire to the city.
Several more well-to-do citizens, upset by the kind of people they had landed among, said they were sure it was all some mistake and offered the Prefect gifts to clear up the misunderstanding. These Tigellinus willingly released, for he thought the branded criminals and deserter slaves were the most guilty. He wished to undertake a thorough weeding out of the whole of the underworld of Rome which now after the fire was making the city unsafe at night. Such was his conception of the Christians.
At first the prisoners were calm, appealing in the name of Christ as they talked among themselves and not understanding what they were accused of. But when they saw people being sorted out and released at random and when they heard from others that everyone was being asked whether they had taken part in setting fire to Rome or knew anything about it, they began to be frightened and even distrust each other.
The separating of the circumcised from the rest roused the suspicion that the followers of Jacob, the supporters of Jerusalem, had had something to do with the matter. These people had always kept themselves apart from the Christians, following their own Jewish customs and looking on themselves as more devout than others. Violent disputes also broke out between the supporters of Cephas and those of Paul. The result was that the remaining prisoners were encouraged to denounce Christians of other kinds as much as possible. Even those who kept calm were drawn into this envy and vengefulness, and they too denounced others. There were also some who reasoned sensibly and considered it would be best to denounce as many people as possible, and highly placed people as well.
The more we are, they thought, the more impossible it will be to hold a trial. Paul was released. Tigellinus will soon come to his senses when he sees how many and how influential we are.
During the night, whole families and relatives had been arrested in this way all over Rome, so swiftly that the Praetorians could only just keep up.
Tigellinus received a gloomy awakening in the morning after his night of wine and boys. His eyes were met by the sight of the Praetorians’ huge parade ground filled with well-dressed people humbly sitting in families on the ground. Long lists of people who had been denounced were shown to him and he was asked whether house searches and arrests were also to be made of people with the rank of senator and Consul.
At first he did not believe all these reports, but said that the Christian criminals had out of sheer ill-will accused honorable citizens. So he walked threateningly around the parade ground with his whip in his hand, asking here and there: “Are you really Christians?” All of them admitted gladly and trustfully that they believed in Christ.
They were such respectable and innocent people that he did not have the nerve to give them as much as a flick of his whip, but decided that some kind of fearful mistake had been made. He and his colleagues calculated with the help of their lists that there were about twenty thousand people from all walks of life still waiting to be arrested. To punish that number seemed insane.
Rumors about the mass arrests of Christians had of course spread all over Rome. Tigellinus was soon besieged by hordes of envious and malicious people who all wished to tell him that with their own eyes they had seen the Christians gathering on the hillsides during the fire, singing songs of praise and predicting the fire which was about to fall on the city from the sky.
In the Praetorium, complete chaos reigned. The people who had been billeted in emergency housing on Mars field took the opportunity to break into homes they knew were Christian, mistreat others and plunder their shops, without differentiating between Christian and Jew.
Unhindered by the police, excited crowds arrived at the Praetorium dragging bloodstained and ill-treated Christians and Jews with them to have them charged, now they had heard that the fire-raisers had been exposed. Tigellinus still had sufficient wits left to speak firmly to these people, forbidding them to take the law into their own hands regardless of their understandable rage, and he assured them the Emperor would punish the guilty in a way that their terrible crimes deserved.
Then he sent the Praetorians out to restore order in the city. During these violent hours of the morning, the Christians were more secure within the walls of the Praetorium than they would have been in their own homes.
Since early in the morning, frightened refugees had been gathering in my house and garden on Avendne, in the hope that my rank and position would give them some security. The neighbors behaved threateningly by shouting epithets and hurling stones over the garden walls. I dared not arm my slaves, or the Christians would have been accused of armed resistance as well, so I ordered the entrance to be guarded as closely as possible. I had been put in an unpleasant position. The only fortunate thing was that Claudia had finally agreed to go with the servants to my country property in Caere, to give birth to our child there.
My anxiety over her made me sensitive and not willing to be too hard on her beloved Christians, in case I brought misfortune on her delivery. After thinking over the various possibilities, I spoke to them seriously and advised them to leave the city at once, for it was evident that some stern indictment of the Christians was coming.
But the Christians protested that no one could prove that they had done anything wrong; on the contrary, they had tried to avoid all vices and sins and lead a quiet life. They had in their human weakness perhaps sinned against Christ, but the Emperor or the State they had not injured in any way. So they wished to appoint lawyers who would defend their imprisoned brothers and sisters, and they themselves wished to take food and drink to them in their distress. At that time it was still not clear what an enormous number of people had been arrested during the night.
To be rid of them, I finally promised them money and a refuge at my properties in Praeneste and Caere. But they would not agree until I had promised to go to Tigellinus myself and defend the Christians as best I could. I had held the rank of Praetor and the Christians would find me much more use to them than they would the somewhat dubious poor-lawyers. Finally they left my house hesitantly, still talking loudly together, so that my garden became deserted.