In the mean time Chærea and the other chief conspirators had fled to a secret place of retreat, where they now lay concealed. As soon as they had found that the object of their vengeance was really dead, and when they had satisfied themselves with the pleasure of cutting and stabbing the lifeless body, they stole away to the house of one of their friends in the neighborhood, where they could lie for a time secreted in safety. The life-guards sought for them everywhere, but could not find them. The streets were filled with tumult and confusion. Rumors of every kind, false and true, spread in all directions, and increased the excitement. At length, however, the consuls, who were the chief magistrates of the republic, succeeded in organizing a force and in restoring order. They took possession of the forum and of the capitol and posted sentinels and guards along the streets. They compelled the emperor's guards to desist from their violence, and retire. They sent a herald clothed in mourning into the theater, to announce officially to the people the event which had occurred, and to direct them to repair quietly to their homes. Having taken these preliminary measures they immediately called the Senate together, to deliberate on the emergency which had occurred, and to decide what should next be done. In the mean time the emperor's guards, having withdrawn from the streets of the city, retired to their camp and joined their comrades. Thus there were two vast powers organized--that of the army in the camp, and that of the Senate in the city--each jealous of the other, and resolute in its determination not to yield, in the approaching conflict. In times of sudden and violent revolution like that which attended the death of Caligula, the course which public affairs are to take, and the question who is to rise and who is to fall, seem often to be decided by utter accident. It was strikingly so in this instance, in respect to the selection, on the part of the army, of the man who was to take the post of supreme command in the place of the murdered emperor. The choice fell on Claudius, Agrippina's uncle. It fell upon him, too, as it would seem, by the merest chance, in the following very extraordinary manner.