In order to reach this distant and shining goal, every step on the dizzy path must be taken with the greatest prudence; any stumble might precipitate him into an abyss. In order to gain his end, Cethegus must first of all make sure of Rome; on Rome alone could his plans be based. Therefore the new Prefect bestowed the greatest care upon the city that had been entrusted to him. He wished to make Rome, morally and physically, his surety of dominion, belonging alone to him, and not to be wrested from him. His office gave him the best pretext for carrying out his plans. Was it not the duty of the _Præfectus Urbi_ to care for the well-being of the populace, and for the preservation and security of the city? He understood perfectly well how to use the rights of his office for the furtherance of his own aims. He easily won the sympathies of all ranks; the nobles honoured in him the head of the conspiracy; he governed the clergy through Silverius, who was the right hand of the pope, and, by public opinion, appointed his successor, and who showed to the Prefect a devotion that was even surprising to its object. He gained the common people, not only by occasional gifts of bread, and games in the Circus, but also by promoting great undertakings, which, at the cost of the Gothic Government, provided work and sustenance for thousands. He persuaded Amalaswintha to give orders that the fortifications of Rome, which had suffered much more since the reign of Honorius from the inroads of time and the selfishness of Roman architects, than from the Visigoths and Vandals, should be quickly and completely restored "to the honour of the Eternal City, and," as she imagined, "for protection against the Byzantines." Cethegus himself, and, as was afterwards proved by the unsuccessful sieges of the Goths and Byzantines, with great strategic genius, made the plan of the magnificent works. With the greatest zeal he set about the gigantic task of transforming the immense city, with its circumference of many miles, into a stronghold of the first rank. The thousands of workmen, who well knew to whom they owed their well-paid employment, applauded the Prefect whenever he showed himself upon the ramparts, to examine what progress had been made, or excite to new industry, and, sometimes, to put his own hand to the work. And the deceived Princess assigned one million _solidi_ after another for the expenses of fortifications, against which the whole power of her people was shortly to be wrecked and annihilated. The most important point of these fortifications was the Tomb of Hadrian, known now under the name of Castle St. Angelo. This magnificent edifice, built of blocks of Parian marble, which were laid one upon the other without any uniting cement, lay, at that time, about a stone's-throw from the Aurelian Grate, the flanking walls of which it by far overtopped.