The monstrous lengths to which men of the highest rank were now prepared to go to curry favour with Tiberius and Sejanus was exemplified in the ruin of Sabinus, a loyal friend of the house of Germanicus. The unfortunate man was tricked into speaking bitterly of Sejanus and Tiberius. Three senators were actually hidden above the ceiling of the room where he was entrapped into uttering unguarded phrases, and on this evidence he was condemned. The death of the aged Livia Augusta removed the last check on the influence of Sejanus. [The account of his two years of unqualified supremacy, and of his sudden and utter overthrow has been lost, two books of the "Annals" being missing here.] From this time, the life of Tiberius at Capræ was one of morbid and nameless debauchery. The condition of his mind may be inferred from the opening words of one of his letters to the senate. "If I know what to write, how to write it, what not to write, may the gods and goddesses destroy me with a worse misery than the death I feel myself dying daily." The end came when Macro, the prefect of the Prætorians, who, to save his own life and secure the succession of Gaius Cæsar Caligula, the surviving son of Germanicus, caused the old emperor to be smothered. [The record of the next ten years--the reign of Caligula, and the first years of Claudius--is lost. When the story is taken up again, the wife of Claudius, the infamous Messalina, was at the zenith of her evil career.] While the doting pedant Claudius was adding new letters to the alphabet, Messalina was parading with utter shamelessness her last and fatal passion for Silius, and went so far as publicly to marry her paramour. It was the freedman Narcissus who made the outrageous truth known to Claudius, and practically terrorised him into striking. Half measures were impossible; a swarm of Messalina's accomplices in vice were put to death. To her, Claudius showed signs of relenting; but Narcissus gave the orders for her death without his knowledge. When they told Claudius that she was dead, he displayed no emotion, but went on with his dinner, and apparently forgot the whole matter. A new wife had to be provided; Agrippina, the daughter of Germanicus, niece of Claudius himself, and mother of the boy Domitius, who was to become the emperor Nero, was the choice of the freedman Pallas, and proved the successful candidate. Shortly after, her new husband adopted Nero formally as his son. It was not long before she had assumed an air of equality with her husband; and all men saw that she intended him to be succeeded not by his own son Britannicus, but by hers, Nero.