XLII. As soon as he had embraced Cinna and greeted the soldiers, Marius commenced active operations and gave a great turn to affairs. First of all, by attacking the corn-vessels[135] with his ships and plundering the merchants, he made himself master of the supplies. He next sailed to the maritime cities, which he took; and, finally, Ostia being treacherously surrendered to him, he made plunder of the property that he found there and put to death many of the people, and by blocking up the river he completely cut off his enemies from all supplies by sea. He now moved on with his army towards Rome and occupied the Janiculus. Octavius damaged his own cause, not so much from want of skill as through his scrupulous observance of the law, to which he unwisely sacrificed the public interests; for though many persons advised him to invite the slaves to join him by promising their freedom, he refused to make them members of the State from which he was endeavouring to exclude Marius in obedience to the law. On the arrival at Rome of Metellus,[136] the son of Metellus who had commanded in Libya, and had been banished from the city through the intrigues of Marius, the soldiers deserted Octavius and came to Metellus, entreating him to take the command and save the city; they said, if they had an experienced and active commander, they would fight well and get the victory. But Metellus expressed great dissatisfaction at their conduct, and bade them go to the consul, upon which they passed over to the enemy. Metellus also in despair left the city. But Octavius was persuaded by Chaldæans[137] and certain diviners and interpreters of the Sibylline books to stay in Rome by the assurance that all would turn out well. Octavius, who in all other matters had as solid a judgment as any Roman, and most carefully maintained the consular dignity free from all undue influence according to the usage of his country and the laws, as if they were unchangeable rules, nevertheless showed great weakness in keeping company with impostors and diviners, rather than with men versed in political and military matters. Now Octavius was dragged down from the Rostra before Marius entered the city, by some persons who where sent forward, and murdered; and it is said that a Chaldæan writing was found in his bosom after he was killed. It seemed to be a very inexplicable circumstance, that of two illustrious commanders, Marius owed his success to not disregarding divination, and Octavius thereby lost his life.