XXVII. After these events, the Thessalians again complained of Alexander of Pheræ for attacking their cities, and Pelopidas and Ismenias were sent as ambassadors to them. Pelopidas, however, brought no army with him, as no war was expected, and was forced to make use of the native Thessalians in this emergency. As affairs in Macedonia had again fallen into disorder (for Ptolemy had assassinated the king, and was in possession of the sovereignty, while the friends of the deceased invited Pelopidas to interfere), he wished to do something; and having no troops of his own, he hired some local mercenaries and marched off at once against Ptolemy. When they drew near to each other, Ptolemy by bribes induced the mercenaries to desert to himself, but, fearing the mere name and prestige of Pelopidas, he went out to him as though he were the more powerful of the two, and after greeting him and begging him to be his friend, he agreed to hold the kingdom in trust for the brothers of the deceased king, and to form a defensive and offensive alliance with Thebes. For the fulfilment of these conditions he gave as hostages his own son Philoxenus and fifty of his companions, whom Pelopidas sent to Thebes, but as he was angry at the desertion of his mercenaries, and learned that their property, wives and children were for the most part placed in Pharsalus, so that by capturing that place he could make them pay the penalty of their crime, he got together a force of Thessalians and came to Pharsalus. When he was just arrived, Alexander the tyrant appeared with his army. Pelopidas and his friends supposed that he had come to establish his innocence, and went to meet him, knowing him to be profligate and bloodthirsty, yet fearing no harm, because of the name of Thebes and their own personal prestige. But he, when he saw them approaching him unarmed and alone, at once secured them and took Pharsalus, striking fear and terror into all his subjects; for they expected that after an act of such daring lawlessness he would spare no one, but treat them as one who had made up his mind to lose his own life.