Ptolemy Ceraunus forthwith organized a body of adherents and proceeded to Macedon, where he assumed the diadem, and caused himself to be proclaimed king. He found the country distracted by dissensions, many parties having been formed, from time to time, in the course of the preceding reigns, each of which was now disposed to come forward with its candidates and its claims. All these Ptolemy Ceraunus boldly set aside. He endeavored to secure all those who were friendly to the ancient house of Antipater by saying that he was Antipater's grandson and heir; and, on the other hand, to conciliate the partisans of Lysimachus, by saying that he was Lysimachus's avenger. This was in one sense true, for he had murdered Seleucus, the man by whom Lysimachus had been destroyed. He relied, however, after all, for the means of sustaining himself in his new position, not on his reasons, but on his troops; and he accordingly advanced into the country more as a conqueror coming to subjugate a nation by force, than as a prince succeeding peacefully to an hereditary crown.
He soon had many rivals and enemies in the field against him. The three principal ones were Antiochus, Antigonus, and Pyrrhus. Antiochus was the son of Seleucus. He maintained that his father had fairly conquered the kingdom of Macedon, and had acquired the right to reign over it; that Ptolemy Ceraunus, by assassinating Seleucus, had not divested him of any of his rights, but that they all descended unimpaired to his son, and that he himself, therefore, was the true king of Macedon. Antigonus was the son of Demetrius, who had reigned in Macedon at a former period, before Lysimachus had invaded and conquered the kingdom. Antigonus therefore maintained that his right was superior to that of Ptolemy, for his father had been the acknowledged sovereign of the country at a period subsequent to that of the reign of Antipater. Pyrrhus was the third claimant. He had held Macedon by conquest immediately before the reign of Lysimachus, and now, since Lysimachus had been deposed, his rights, as he alleged, revived. In a word, there were four competitors for the throne, each urging claims compounded of rights of conquest and of inheritance, so complicated and so involved, one with the other, as to render all attempts at a peaceable adjudication of them absolutely hopeless. There could be no possible way of determining who was best entitled to the throne in such a case. The only question, therefore, that remained was, who was best able to take and keep it.
This question Ptolemy Ceraunus had first to try with Antigonus, who came to invade the country with a fleet and an army from Greece. After a very short but violent contest, Antigonus was defeated, both by sea and by land, and Ceraunus remained master of the kingdom. This triumph greatly strengthened his power in respect to the other competitors. He, in fact, contrived to settle the question with them by treaty, in which they acknowledged him as king. In the case of Pyrrhus, he agreed, in consideration of being allowed peaceably to retain possession of his kingdom, to furnish a certain amount of military aid to strengthen the hands of Pyrrhus in the wars in which he was then engaged in Italy and Sicily. The force which he thus furnished consisted of five thousand foot, four thousand horse, and fifty elephants.
Thus it would seem that every thing was settled. There was, however, one difficulty still remaining. Arsinoe, the widow of Lysimachus, still lived. It was Arsinoe, it will be recollected, whose jealousy of her half-sister, Lysandra, had caused the death of Agathocles and the flight of Lysandra, and which had led to the expedition of Seleucus, and the subsequent revolution in Macedon. When her husband was killed, she, instead of submitting at once to the change of government, shut herself up in Cassandria, a rich and well-defended city. She had her sons with her, who, as the children of Lysimachus, were heirs to the throne. She was well aware that she had, for the time being, no means at her command for supporting the claims of her children, but she was fully determined not to relinquish them, but to defend herself and her children in the city of Cassandria, as well as she was able, until some change should take place in the aspect of public affairs. Ceraunus, of course, saw in her a very formidable and dangerous opponent; and, after having triumphed over Antigonus, and concluded his peace with Antiochus and with Pyrrhus, he advanced toward Cassandria, revolving in his mind the question by what means he could best manage to get Arsinoe and her children into his power.
He concluded to try the effect of cunning and treachery before resorting to force. He accordingly sent a message to Arsinoe, proposing that, instead of quarreling for the kingdom, they should unite their claims, and asking her, for this purpose, to become his wife. He would marry her, he said, and adopt her children as his own, and thus the whole question would be amicably settled.
Arsinoe very readily acceded to this proposal. It is true that she was the half-sister of Ceraunus; but this relationship was no bar to a matrimonial union, according to the ideas that prevailed in the courts of kings in those days. Arsinoe, accordingly, gave her consent to the proposal, and opened the gates of the city to Ceraunus and his troops. Ceraunus immediately put her two sons to death. Arsinoe herself fled from the city. Very probably Ceraunus allowed her to escape, since, as she herself had no claim to the throne, any open violence offered to her would have been a gratuitous crime, which would have increased, unnecessarily, the odium that would naturally attach to Ceraunus's proceedings. At any rate, Arsinoe escaped, and, after various wanderings, found her way back to her former home in her father's court at Alexandria.
The heart of Ceraunus was now filled with exultation and pride. All his schemes had proved successful, and he found himself, at last, in secure possession, as he thought, of a powerful and wealthy kingdom. He wrote home to his brother in Egypt, Ptolemy Philadelphus-by whom, as the reader will recollect, he had been supplanted there, in consequence of his father's preference for the children of Berenice-saying that he now acquiesced in that disposition of the kingdom of Egypt, since he had acquired for himself a better kingdom in Macedon. He proceeded to complete the organization of his government. He recruited his armies; he fortified his towns; and began to consider himself as firmly established on his throne. All his dreams, however, of security and peace, were soon brought to a very sudden termination.
There was a race of half-civilized people on the banks of the Danube called Gauls. Some tribes of this nation afterward settled in what is now France, and gave their name to that country. At the period, however, of the events which we are here relating, the chief seat of their dominion was a region on the banks of the Danube, north of Macedon and Thrace. Here they had been for some time concentrating their forces and gradually increasing in power, although their movements had been very little regarded by Ceraunus. Now, however, a deputation suddenly appeared at Ceraunus's capital, to say that they were prepared for an invasion of his dominions, and asking him how much money he would give for peace. Ceraunus, in the pride of his newly-established power, treated this proposal with derision. He directed the embassadors to go back and say that, far from wishing to purchase peace, he would not allow peace to them, unless they immediately sent him all their principal generals, as hostages for their good behavior. Of course, after such an interchange of messages as this, both parties immediately prepared for war.