As soon as the last tower on the Roman walls was under roof, the Goths were to be attacked on one and the same day all over Italy, and, at one stroke, all the fortresses, castles, and towns--Rome, Ravenna, and Neapolis foremost--were to be overpowered and taken. If the barbarians were once driven into the open country, there was no fear--considering their complete ignorance of the art of siege, and the number and strength of the Italian fortresses--that they would be able to take these last, and thereby again become masters of the peninsula. Then an allied army from Byzantium might aid in finally driving the Goths over the Alps; and Cethegus was resolved to prevent these allies from entering the most important fortresses, so that, later, they also might be got rid of without difficulty. To ensure the success of this plan, it was necessary that the Goths should be taken by surprise. If war with Byzantium were in prospect, or, still worse, already broken out, it naturally followed that the barbarians would not allow their fortified places to be wrested from them by a mere stroke of the hand. Now as Cethegus--since he had penetrated the motives of the embassy of Petros--fully expected that Justinian would come forward at the first opportunity, and as he had barely succeeded in preventing the landing of Belisarius, he was resolved not to lose a moment's time. He had arranged that a general meeting of the conspirators should take place in the Catacombs on the day of the completion of the Roman fortifications, when their successful termination should be celebrated, the moment of the attack on the Goths decided, and Cethegus himself designated as the leader of this purely Italian movement. He hoped to overcome the opposition of the timorous or the bribed--who were inclined to act only for and with the assistance of Byzantium--by the enthusiasm of the Roman youth, whom he would promise to lead at once to battle. Before the day of meeting arrived, he had heard the news of Amalaswintha's murder, and of the confusion and division of the Goths, and he impatiently longed for the crisis. At length the last tower of the Aurelian Grate was completed. Cethegus himself gave the finishing stroke, and as he did so it seemed to him that he heard the sound of the blow which would liberate Rome and Italy. At the banquet which he afterwards gave to thousands of labourers in the theatre of Pompey, most of the conspirators were present, and the Prefect made use of the opportunity to show them how unlimited was his popularity. Upon the younger members the impression which he wished and expected to make was produced, but a small party, headed by Silverius, retired from the tables with discontented and gloomy looks.