Claudius was attacked with illness, and for the recovery of his health had recourse to the soft air and salubrious waters of Sinuessa. It was then that Agrippina, long since bent upon the impious deed, and eagerly seizing the present occasion, well furnished too as she was with wicked agents, deliberated upon the nature of the poison she would use: whether, if it were sudden and instantaneous in its operation, the desperate achievement would not be brought to light; if she chose materials slow and consuming in their operation, whether Claudius, when his end approached, and perhaps having discovered the treachery, would not resume his affection for his son. Something of a subtle nature was resolved upon, “such as would disorder his brain and require time to kill.” An experienced artist in such preparations was chosen, her name Locusta; lately condemned for poisoning, and long reserved as one of the instruments of ambition. By this woman’s skill the poison was prepared; to administer it was assigned to Halotus, one of the eunuchs, whose office it was to serve up the emperor’s repasts, and prove the viands by tasting them. In fact, all the particulars of this transaction were soon afterwards so thoroughly known that the writers of those times are able to recount how the poison was poured into a dish of mushrooms, of which he was particularly fond; but whether it was that his senses were stupefied, or from the wine he had drunk, the effect of the poison was not immediately perceived; at the same time a relaxation of the intestines seemed to have been of service to him. Agrippina therefore became dismayed; but as her life was at stake, she thought little of the odium of her present proceedings, and called in the aid of Xenophon the physician, whom she had already implicated in her guilty purposes. It is believed that he, as if he purposed to assist Claudius in his efforts to vomit, put down his throat a feather besmeared with deadly poison; not unaware that in desperate villainies the attempt without the deed is perilous, while to ensure the reward they must be done effectually at once. The senate was in the meantime assembled, and the consuls and pontiffs were offering vows for the recovery of the emperor, when, already dead, he was covered with clothes and warm applications, to hide it till matters were arranged for securing the empire to Nero. First there was Agrippina, who, feigning to be overpowered with grief and anxiously seeking for consolation, clasped Britannicus in her arms, called him “the very model of his father,” and by various artifices withheld him from leaving the chamber. She likewise detained Antonia and Octavia, his sisters, and had closely guarded all the approaches to the palace: from time to time too she gave out that the prince was on the mend, that the soldiery might entertain hopes till the auspicious moment, predicted by the calculations of the astrologers, should arrive.