Nor did Ptolemaeus fail to play his part; he now even prompted to crime, to which from such wishes it is easy to pass. Whether indeed these thoughts of crime were suddenly conceived, is doubtful. Otho had long been courting the affections of the soldiery, either in the hope of succeeding to the throne, or in preparation for some desperate act. On the march, on parade, and in their quarters, he would address all the oldest soldiers by name, and in allusion to the progresses of Nero would call them his messmates. Some he would recognise, he would inquire after others, and would help them with his money and interest. He would often intersperse his conversation with complaints and insinuations against Galba and anything else that might excite the vulgar mind. Laborious marches, a scanty commissariat, and the rigour of military discipline, were especially distasteful, when men, accustomed to sail to the lakes of Campania and the cities of Greece, had painfully to struggle under the weight of their arms over the Pyrenees, the Alps, and vast distances of road.
The minds of the soldiery were already on fire, when Maevius Pudens, a near relative of Tigellinus, added, so to speak, fuel to the flames.
In his endeavour to win over all who were particularly weak in character, or who wanted money and were ready to plunge into revolution, he gradually went so far as to distribute, whenever Galba dined with Otho, one hundred sesterces to each soldier of the cohort on duty, under pretext of treating them. This, which we may almost call a public bounty, Otho followed up by presents more privately bestowed on individuals; nay he bribed with such spirit, that, finding there was a dispute between Cocceius Proculus, a soldier of the bodyguard, and one of his neighbours, about some part of their boundaries, he purchased with his own money the neighbour's entire estate, and made a present of it to the soldier. He took advantage of the lazy indifference of the Prefect, who overlooked alike notorious facts and secret practices.
He then entrusted the conduct of his meditated treason to Onomastus, one of his freedmen, who brought over to his views Barbius Proculus, officer of the watchword to the bodyguard, and Veturius, a deputy centurion in the same force. Having assured himself by various conversations with these men that they were cunning and bold, he loaded them with presents and promises, and furnished them with money with which to tempt the cupidity of others. Thus two soldiers from the ranks undertook to transfer the Empire of Rome, and actually transferred it. Only a few were admitted to be accomplices in the plot, but they worked by various devices on the wavering minds of the remainder; on the more distinguished soldiers, by hinting that the favours of Nymphidius had subjected them to suspicion; on the vulgar herd, by the anger and despair with which the repeated postponement of the donative had inspired them. Some were fired by their recollections of Nero and their longing regrets for their old license. All felt a common alarm at the idea of having to serve elsewhere.
The contagion spread to the legions and the auxiliary troops, already excited by the news of the wavering loyalty of the army of Germany. So ripe were the disaffected for mutiny and so close the secrecy preserved by the loyal, that they would actually have seized Otho on the 14th of January, as he was returning from dinner, had they not been deterred by the risks of darkness, the inconvenient dispersion of the troops over the whole city, and the difficulty of concerted action among a half-intoxicated crowd. It was no care for the state, which they deliberately meditated polluting with the blood of their Emperor; it was a fear lest in the darkness of night any one who presented himself to the soldiers of the Pannonian or German army might be fixed on instead of Otho, whom few of them knew. Many symptoms of the approaching outburst were repressed by those who were in the secret. Some hints, which had reached Galba's ears, were turned into ridicule by Laco the prefect, who knew nothing of the temper of the soldiery, and who, inimical to all measures, however excellent, which he did not originate, obstinately thwarted men wiser than himself.
On the 15th of January, as Galba was sacrificing in front of the temple of Apollo, the Haruspex Umbricius announced to him that the entrails had a sinister aspect, that treachery threatened him, that he had an enemy at home. Otho heard, for he had taken his place close by, and interpreted it by contraries in a favourable sense, as promising success to his designs. Not long after his freedman Onomastus informed him that the architect and the contractors were waiting for him. It had been arranged thus to indicate that the soldiers were assembling, and that the preparations of the conspiracy were complete.
To those who inquired the reason of his departure, Otho pretended that he was purchasing certain farm-buildings, which from their age he suspected to be unsound, and which had therefore to be first surveyed.
Leaning on his freedman's arm, he proceeded through the palace of Tiberius to the Velabrum, and thence to the golden milestone near the temple of Saturn. There three and twenty soldiers of the body-guard saluted him as Emperor, and, while he trembled at their scanty number, put him hastily into a chair, drew their swords, and hurried him onwards. About as many more soldiers joined them on their way, some because they were in the plot, many from mere surprise; some shouted and brandished their swords, others proceeded in silence, intending to let the issue determine their sentiments.
Julius Martialis was the tribune on guard in the camp. Appalled by the enormity and suddenness of the crime, or perhaps fearing that the troops were very extensively corrupted and that it would be destruction to oppose them, he made many suspect him of complicity.
