Not for another twelvemonth, however, was a Gothic encampment again seen before the walls of Rome (545); but in the meantime Totila had elaborated his preparations so as to render a siege effective to the utmost. By capturing the fortress of Tibur, situated on the Anio, twenty miles to the north-east of the capital, he was enabled to command the fluviatile navigation and to prevent supplies reaching Rome from the fields of Tuscany. On the other hand, by posting numerous war-galleys among the islands off the coast, in the track of the corn-ships which sailed from Sicily, he cut off all possibility of the Roman granaries being replenished by sea-borne provisions. Bessas was now governor of Rome, but the garrison under his command amounted to only three thousand, and their ardour was soon damped by the result of the first sally against the enemy. A band of Goths approached the gates and drew upon themselves the attack of two eager lieutenants, who chased them in simulated flight until they fell into a skilfully-contrived ambush, from which few of them returned. After this mishap, which was incurred against the advice of Bessas, no more sallies were made by the besieged.

Such was now the prosperous position of Totila's affairs. Yet a twelvemonth had already elapsed since Belisarius had received a commission from Justinian to go to the relief of Italy. But he dismissed him to this command without resources from the state, telling him coldly that out of his own great wealth he was to provide for the expenses of the expedition. The Constable, for such he is now to be called, travelled slowly through Illyricum and arrived at Salona with four thousand recruits, whom while on his way he had induced with difficulty to join his standard. He now embarked for Pola in Istria, from whence after a short delay he arrived at Ravenna. At the former place he was met by a group of Gothic spies, who explored his camp and then returned to Totila with the report that his martial equipment was contemptible. They deceived the general by presenting a forged letter pleading for help on behalf of Bonus, the governor of Genoa, who was said to be in a sore strait. At Ravenna Belisarius issued a proclamation expressed in seductive terms, inviting Italians and Goths to join him, but his appeal met with no response, for the reputation of the Byzantines was at the lowest ebb throughout the country. From the time of his arrival at Pola he had begun to send out small bands both by land and sea to attempt something against the enemy, but success had generally been counterbalanced by disaster. He now decided to apply to the Emperor for assistance; and he intrusted his despatch to John, whose place at Rome he filled by transferring Bessas from Spoleto. His petition was conceived as follows: "Most puissant Prince, we have arrived in Italy, and, if nothing but the presence of Belisarius were necessary, the country would now be subjugated to your dominion. For here I am in the midst of the Italians—but without soldiers, horses, arms, or money. If such resources be requisite to carry on warfare it must be allowed that I am totally unprepared. As I passed through Thrace and Illyria I enlisted a few volunteers, but they are only raw recruits, who shun the enemy, desert their horses, and fling their arms on the ground. We have no money at command; the Goths have already collected whatever was due to us from the taxpayers. If I essay to address the soldiers my mouth is stopped by knowing that they are hungering after their pay; whilst numbers, who should be with us, have gone over to the enemy. I beg of you to send me my veteran guards, and at the same time as many troops of Huns and other barbarians as possible. Funds also are urgently needed."

These representations produced no immediate result, and nearly a year passed away before the desired reinforcements began to arrive. In the meantime Belisarius had returned to Dalmatia, where he established his headquarters at Epidamnum. His main object was now to take action for the relief of Rome, but he seemed to have lost much of the energy and enterprise which formerly characterized him. As soon, however, as he had received an increment of force he sent two of his lieutenants to Portus, at the mouth of the Tiber, where a strong fort was still held by the Byzantines. From thence, with the co-operation of Bessas, they were to assail the Goths, both parties acting simultaneously from opposite sides. They made two attacks, in accordance with their instructions, but nothing could move Bessas to emerge from his shelter; and on the second occasion the Goths, having been forewarned, caught them in an ambush with a fatal result to almost the whole band, including the leaders.

So far military assistance had failed, but an effort to re-provision the capital was now made from another quarter. Vigilius, the Roman Pontiff, was at the moment staying in Sicily, where he possessed large estates. He, therefore, freighted a fleet of corn-ships and directed them to sail up the Tiber by the way of Portus. But while they were still a long distance off their approach was signalled to the Goths, who thereupon came down in effective force and concealed themselves near the mouth of the river. The movement was observed by the garrison of the fort, who at once climbed to the highest points of the battlements, and by waving of hands and garments tried to warn the convoy off. The ships' crews, however, mistook the gesticulations and imagined that their advent was being hailed with rejoicings, wherefore they redoubled their energies in order to complete the voyage. Hence they steered straight into the ambuscade of barbarians and were all captured without a chance of being rescued. Among the prisoners was a bishop, whom Totila relieved of both his hands, as the penalty of answering falsely to his interrogations.

At the beginning of the next year (546) the Romans were hard pressed by famine, and began to debate the advisability of surrender. As a preliminary they sent an envoy to Totila to ask for a short truce on condition that if succour did not arrive in the interval they would give themselves up. Pelagius, the chosen deputy, was a man who acted a considerable part on the ecclesiastical stage, and was already well known to Justinian, at whose Court he had resided for several years as Papal legate. The Gothic king received him warmly, but interrupted him, as he was about to begin his exhortation, in order to enter on a justification of himself. First he warned Pelagius that there were three things which it would be useless for him to solicit, viz., clemency towards the Sicilians, to spare the walls of Rome, or to deliver up fugitives who had joined his army. He went on to picture the happy state of Sicily when the Goths first conquered the peninsula, abounding in wealth through the splendid fertility of its soil, and able to export copious supplies for the sustenance of Rome. At the prayer of the Romans Theodoric had left the island almost ungarrisoned, lest the inhabitants should be disturbed in their peaceful occupations to the detriment of the capital. Yet when a small Byzantine force landed they were received everywhere with open arms and the island was allowed to become a base for the invasion of Italy. As for Rome itself, the Greeks had shut themselves up there and harassed the Goths by artifices and stratagems without ever daring to march out and meet them fairly in battle. The citizens, he added, would profit by the destruction of those walls which were the cause of their being reduced to destitution while the hostile armies were intent on their schemes of attack and defence. In reply to this harangue Pelagius merely protested that he had not been permitted to deliver his message, and, on his return to the city, declared that he had found the King in too impracticable a mood to be influenced by any entreaties.

The Romans now felt desperate and approached Bessas and his staff with supplications that he would either provide them with food, turn them out of the city, or at least end their sufferings by killing them at once. His only answer was a recommendation to contain themselves for the present, as Belisarius would soon be at hand with an army of relief. Thus the reign of famine was prolonged until the last stages of starvation were reached. Money and every kind of property were sacrificed to buy any residue of corn that could be discovered or the meanest description of animal food. When horses, dogs, and mice were consumed, the people took to feeding on nettles, which grew in profusion among ruins and around the inner circuit of the walls. Deaths and suicides from the unbearable distress were of frequent occurrence. Nevertheless the garrison was fairly nourished, for Bessas had stored a large quantity of grain in well-guarded granaries, from which he not only maintained his men, but sold portions regularly to the richer citizens. Thus he kept on amassing wealth at a rapid rate, and was unwilling that the siege should be raised as long as his lucrative trade continued. In the direst extremity some citizens purchased from the soldiers the right to escape, for the last payment they were able to make; and, ultimately, large numbers were turned adrift to perish by the wayside or to be seized and slain by the Goths.

By this time Belisarius, having been joined at Epidamnum by as many troops as he saw any prospect of obtaining, determined to proceed with all his force against Totila. John had at last returned,[602] and with him he concerted his measures of transit and attack. The former, with a portion of the army, was to land at Hydruntum,[603] and make his way northwards with Rome as his objective; while the Constable, with the bulk of the troops, was to sail round the peninsula, and make a descent on the enemy from the waters adjacent to the capital. As for the part played by John in this campaign, it may be dismissed at once by saying that after landing he carried on a desultory warfare in southern Italy, made marches and counter-marches through being impeded by the enemy, but never arrived within striking distance of Rome.[604] Belisarius, however, soon achieved his proposed voyage, and appeared at the mouth of the Tiber, where he at once began offensive operations against the Goths. One of his first steps was to relieve himself of the delicate charge of his wife, and to have her guarded in a place of safety. He, therefore, consigned her to the fortress of Portus, under the charge of one of his lieutenants named Isaac, whom he enjoined to devote all his attention to shielding her from harm. "Remain at your post," said he, "even should you hear that I am slain."

The most pressing necessity was now to revictual Rome, and this Belisarius essayed to do by carrying a fleet of provision ships up the Tiber. He had at his disposal two hundred war-galleys, which he loaded with foodstuffs and also equipped most effectively with a view to forcing a passage. Thus on the forecastle of each vessel he constructed a wooden bulwark after the pattern of mural battlements, from the shelter of which his marines could safely discharge their darts. As Totila had foreseen that such attempts would be made he had long taken measures to render them ineffectual. Across the river, at a narrow part about three miles up, he had raised an obstruction in the form of a wooden bridge, at each end of which on the bank he built a large tower, also of timber. In addition chains were used to close the passage over the water farther down. With a view to assailing this structure the Roman general joined together laterally two of his vessels, and on them he erected a tower, high enough to overtop those constructed by the Goths at the sides of the stream. A boat filled with combustibles, pitch, sulphur, resin, was placed on the summit of the tower; and this fabric he caused to be navigated in advance of his flotilla. His spare cavalry and infantry he drew up on the river bank near the sea; and he notified Bessas to make a diversion by sallying forth and assaulting simultaneously the Gothic camp.

Everything prospered as had been intended; the chains were broken through, the defenders of the wooden bridge were severely smitten by the arrows which were showered from the galleys, and the floating tower was brought into close contact with the obstructive barrier. Then the boat was set alight and launched on to the top of one of the enemy's towers, which took fire and was consumed with two hundred of its occupants. One detail only of the manœuvres failed of accomplishment; Bessas never moved, wholly engrossed as he was with his mercenary avidity.

Suddenly, when success appeared to have been almost attained, the operations were abandoned and Belisarius drew off his forces without attempting to push his advantage. Antonina, though unwittingly, was the cause of this disastrous collapse. While the assault was proceeding a glowing account of the victorious progress of the Byzantines was brought to Portus, whereupon Isaac, inflamed with ardour, collected a hundred cavalry, and made a dash for a section of the Gothic army which was encamped near Ostia. At first the enemy were dispersed, but they shortly rallied, and, recognizing the paucity of their adversaries, charged them, with the result that many were slain, while Isaac and some others were captured. A few, however, escaped, who rode full speed to Belisarius and informed him that Isaac was taken prisoner. The general, without stopping to inquire, immediately sounded the signals of retreat, and made all haste to Portus, concluding that his wife had fallen into the hands of the Goths. There he learned the true details as to the temerity of Isaac, which affected him so deeply that he became seriously ill, and was incapacitated for some time from taking the field. Such was the last effort to save Rome from being retaken by the Goths, and before long Totila succeeded in making himself master of the city.