And when Peter learned of the conquest of Sicily, he was still more insistent in his efforts to frighten Theodatus and would not let him go. But he, turning coward and reduced to speechlessness no less than if he himself had become a captive with Gelimer,[23] entered into negotiations with Peter without the knowledge of any others, and between them they formed an agreement, providing that Theodatus should retire from all Sicily in favour of the Emperor Justinian, and should send him also a golden crown every year weighing three hundred litrae,[24] and Gothic warriors to the number of three thousand whenever he should wish; and that Theodatus himself should have no authority to kill any priest or senator, or to confiscate his property for the public treasury except by the decision of the emperor; and that if Theodatus wished to advance any of his subjects to the patrician or some other senatorial rank this honour should not be bestowed by him, but he should ask the emperor to bestow it; and that the Roman populace, in acclaiming their sovereign, should always shout the name of the emperor first, and afterward that of Theodatus, both in the theatres and in the hippodromes and wherever else it should be necessary for such a thing to be done; furthermore, that no statue of bronze nor of any other material should ever be set up to Theodatus alone, but statues must always be made for both, and they must stand thus: on the right that of the emperor, and on the other side that of Theodatus. And after Theodatus had written in confirmation of this agreement he dismissed the ambassador.But, a little later, terror laid hold upon the man's soul and brought him into fears which knew no bound and tortured his mind, filling him with dread at the name of war, and reminding him that if the agreement drawn up by Peter and himself did not please the emperor at all, war would straightway come upon him. Once more, therefore, he summoned Peter, who had already reached Albani,[25] for a secret conference, and enquired of the man whether he thought that the agreement would be pleasing to the emperor. And he replied that he supposed it would. "But if," said Theodatus, "these things do not please the man at all, what will happen then?" And Peter replied "After that you will have to wage war, most noble Sir." "But what is this," he said; "is it just, my dear ambassador?" And Peter, immediately taking him up, said "And how is it not just, my good Sir, that the pursuits appropriate to each man's nature should be preserved?" "What, pray, may this mean?" asked Theodatus. "It means," was the reply, "that your great interest is to philosophize, while Justinian's is to be a worthy emperor of the Romans. And there is this difference, that for one who has practised philosophy it would never be seemly to bring about the death of men, especially in such great numbers, and it should be added that this view accords with the teachings of Plato, which you have evidently espoused, and hence it is unholy for you not to be free from all bloodshed; but for him it is not at all inappropriate to seek to acquire a land which has belonged from of old to the realm which is his own." Thereupon Theodatus, being convinced by this advice, agreed to retire from the kingship in favour of the Emperor Justinian, and both he and his wife took an oath to this effect. He then bound Peter by oaths that he would not divulge this agreement until he should see that the emperor would not accept the former convention. And he sent with him Rusticus, a priest who was especially devoted to him and a Roman citizen, to negotiate on the basis of this agreement. And he also entrusted a letter to these men.So Peter and Rusticus, upon reaching Byzantium, reported the first decision to the emperor, just as Theodatus had directed them to do. But when the emperor was quite unwilling to accept the proposal, they revealed the plan which had been committed to writing afterwards. This was to the following effect: "I am no stranger to royal courts, but it was my fortune to have been born in the house of my uncle while he was king and to have been reared in a manner worthy of my race; and yet I have had little experience of wars and of the turmoils which wars entail. For since from my earliest years I have been passionately addicted to scholarly disputations and have always devoted my time to this sort of thing, I have consequently been up to the present time very far removed from the confusion of battles. Therefore it is utterly absurd that I should aspire to the honours which royalty confers and thus lead a life fraught with danger, when it is possible for me to avoid them both. For neither one of these is a pleasure to me; the first, because it is liable to satiety, for it is a surfeit of all sweet things, and the second, because lack of familiarity with such a life throws one into confusion. But as for me, if estates should be provided me which yielded an annual income of no less than twelve centenaria,[26] I should regard the kingdom as of less account than them, and I shall hand over to thee forthwith the power of the Goths and Italians. For I should find more pleasure in being a farmer free from all cares than in passing my life amid a king's anxieties, attended as they are by danger after danger. Pray send a man as quickly as possible into whose hands I may fittingly deliver Italy and the affairs of the kingdom."

Such was the purport of the letter of Theodatus. And the emperor, being exceedingly pleased, replied as follows: "From of old have I heard by report that you were a man of discretion, but now, taught by experience, I know it by the decision you have reached not to await the issue of the war. For certain men who in the past have followed such a course have been completely undone. And you will never repent having made us friends instead of enemies. But you will not only have this that you ask at our hands, but you will also have the distinction of being enrolled in the highest honours of the Romans. Now for the present I have sent Athanasius and Peter, so that each party may have surety by some agreement. And almost immediately Belisarius also will visit you to complete all the arrangements which have been agreed upon between us." After writing this the emperor sent Athanasius, the brother of Alexander, who had previously gone on an embassy to Atalaric, as has been said,[27] and for the second time Peter the orator, whom I have mentioned above,[28] enjoining upon them to assign to Theodatus the estates of the royal household, which they call "patrimonium"; and not until after they had drawn up a written document and had secured oaths to fortify the agreement were they to summon Belisarius from Sicily, in order that he might take over the palace and all Italy and hold them under guard. And he wrote to Belisarius that as soon as they should summon him he should go thither with all speed.