One evening, as the Emperor was returning to the palace through a dark and narrow portico in the Amphitheatre, an assassin, who waited his passage, rushed upon him with a drawn sword, loudly exclaiming, "_The senate sends you this_." The menace prevented the deed; the assassin was seized by the guards, and immediately revealed the authors of the conspiracy. It had been formed, not in the state, but within the walls of the palace. Lucilla, the Emperor's sister, and widow of Lucius Verus, impatient of the second rank, and jealous of the reigning empress, had armed the murderer against her brother's life. She had not ventured to communicate the black design to her second husband, Claudius Pompeianus, a senator of distinguished merit and unshaken loyalty; but among the crowd of her lovers--for she imitated the manners of Faustina--she found men of desperate fortunes and wild ambition, who were prepared to serve her more violent as well as her tender passions. The conspirators experienced the rigor of justice, and the abandoned princess was punished, first with exile, and afterward with death. But the words of the assassin sunk deep into the mind of Commodus, and left an indelible impression of fear and hatred against the whole body of the senate. Those whom he had dreaded as importunate ministers he now suspected as secret enemies. The delators, a race of men discouraged and almost extinguished under the former reigns, again became formidable, as soon as they discovered that the Emperor was desirous of finding disaffection and treason in the senate. That assembly, whom Marcus had ever considered as the great council of the nation, was composed of the most distinguished of the Romans; and distinction of every kind soon became criminal. The possession of wealth stimulated the diligence of the informers; rigid virtue implied a tacit censure of the irregularities of Commodus; important services implied a dangerous superiority of merit; and the friendship of the father always insured the aversion of the son. Suspicion was equivalent to proof; trial to condemnation. The execution of a considerable senator was attended with the death of all who might lament or revenge his fate, and when Commodus had once tasted human blood he became incapable of pity or remorse.