Hannibal did not write the letters, since he did not consider it yet safe to do so, as the Romans were searching out everything and the war was not yet openly declared, and he had many opponents in Carthage, and the city had no fixed or sound policy, -- the very lack of which caused its destruction, not long afterward. But he sent Aristo, a Tyrian merchant, to his friends, on the pretext of trading, to tell them that when he should invade Italy they should rouse Carthage to avenge her wrongs. Aristo did this, but when Hannibal's enemies learned that he was in the city they raised a tumult as though a revolution was impending, and searched everywhere to find him. In order that Hannibal's friends might not be particularly accused, he posted letters in front of the senate-chamber secretly by night, saying that Hannibal exhorted the whole senate to rescue the country with the help of Antiochus. Having done this he sailed away. In the morning the friends of Hannibal were relieved of their fears by this afterthought of Aristo, which implied that he had been sent to the whole senate. The city was filled with all kinds of tumult, the people feeling bitterly toward the Romans, but despairing of accomplishing anything indirectly. Such was the situation of affairs in Carthage.