+18.+ They went no further than this in the first interview: but during the next day Appius ordered Philip to send Onomastus and Cassander at once to Rome, that the Senate might inform itself on what had happened. The king was disturbed at this to the greatest possible degree, and for some time did not know what to say; but at last he said that he would send Cassander, who was the actual author of the business, that the Senate might learn the truth from him; but he tried to get Onomastus excused, both in this and subsequent interviews with the legates, alleging as a reason that not only had Onomastus not been in Maroneia at the time of the massacre, but not even in any part of the country in its neighbourhood. His real motive, however, was fear lest, if he got to Rome, having been engaged with him in many similar transactions, he would not only tell the Romans the story of Maroneia, but all the others also. Eventually he did get Onomastus excused; and having, after the departure of the legates, sent off Cassander, he sent some agents with him as far as Epirus, and there had him poisoned.[122] But Appius and his colleagues left Philip with their minds fully made up both as to his guilt in the matter of Maroneia and his alienation from Rome. [Sidenote: King Philip meditates a breach with Rome.] [Sidenote: Sends his son Demetrius there, in hopes of putting off the war for a time.] The king, thus relieved of the presence of the legates, after consulting with his friends Apelles and Philocles became clearly conscious that his quarrel with Rome had now become serious, and that it could no longer be concealed, but was become notorious to most people in the world. He was therefore now wholly bent on measures of self-defence and retaliation. But as he was as yet unprepared for some of the plans which he had in his mind, he cast about to find some means of putting matters off, and gaining time for making his preparations for war. He accordingly resolved to send his youngest son Demetrius to Rome: partly to make his defence on the charges brought against him, and partly also to beg pardon for any error which he might have committed. He felt certain that everything he wished would be obtained from the Senate by means of this young prince, because of the extraordinary attentions which had been shown him when he was acting as a hostage. He no sooner conceived this idea than he set about making preparations for sending the prince and those of his own friends destined to accompany him on his mission. At the same time he promised the Byzantines to give them help: not so much because he cared for them, as from a wish under cover of their name to strike terror into the princes of the Thracians living beyond the Propontis, as a step towards the fulfilment of his main purpose.... [Sidenote: Disputes in Crete.]