Cassander proved to be too strong for Polysperchon in Greece. He had obtained large bodies of troops from his Asiatic allies, and he maneuvered and managed these forces with so much bravery and skill, that Polysperchon could not dislodge him from the country. A somewhat curious incident occurred on one occasion during the campaign, which illustrates the modes of warfare practiced in those days. It seems that one of the cities of Peloponnesus, named Megalopolis, was on the side of Cassander, and when Polysperchon sent them a summons to surrender to him and acknowledge his authority, they withdrew all their property and the whole of their population within the walls, and bid him defiance. Polysperchon then advanced and laid siege to the city.
After fully investing the city and commencing operations on various sides, to occupy the attention of the garrison, he employed a corps of sappers and miners in secretly undermining a portion of the wall. The mode of procedure, in operations like this, was to dig a subterranean passage leading to the foundations of the wall, and then, as fast as these foundations were removed, to substitute props to support the superincumbent mass until all was ready for the springing of the mine. When the excavations were completed, the props were suddenly pulled away, and the wall would cave in, to the great astonishment of the besieged, who, if the operation had been skillfully performed, knew nothing of the danger until the final consummation of it opened suddenly before their eyes a great breach in their defenses. Polysperchon's mine was so successful, that three towers fell into it, with all the wall connecting them. These towers came down with a terrific crash, the materials of which they had been composed lying, after the fall, half buried in the ground, a mass of ruins.
The garrison of the city immediately repaired in great numbers to the spot, to prevent the ingress of the enemy; while, on the other hand, a strong detachment of troops rushed forward from the camp of Polysperchon to force their way through the breach into the city. A very desperate conflict ensued, and while the men of the city were thus engaged in keeping back the invaders, the women and children were employed in throwing up a line of intrenchments further within, to cover the opening which had been made in the wall. The people of the city gained the victory in the combat. The storming party were driven back, and the besieged were beginning to congratulate themselves on their escape from the danger which had threatened them, when they were suddenly terrified beyond measure by the tidings that the besiegers were arranging a train of elephants to bring in through the breach. Elephants were often used for war in those days in Asiatic countries, but they had seldom appeared in Greece. Polysperchon, however, had a number of them in the train of his army, and the soldiers of Megalopolis were overwhelmed with consternation at the prospect of being trampled under foot by these huge beasts, wholly ignorant as they were of the means of contending against them.
It happened, however, that there was in the city of Megalopolis at this time a soldier named Damides, who had served in former years under Alexander the Great, in Asia. He went to the officers who had command within the city and offered his aid. "Fear nothing," said he, "but go on with your preparations of defense, and leave the elephants to me. I will answer for them, if you will do as I say." The officers agreed to follow his instructions. He immediately caused a great number of sharp iron spikes to be made. These spikes he set firmly in the ends of short stakes of wood, and then planted the stakes in the ground all about the intrenchments and in the breach, in such a manner that the spikes themselves, points upward, protruded from the ground. The spikes were then concealed from view by covering the ground with straw and other similar rubbish.
The consequence of this arrangement was, that when the elephants advanced to enter the breach, they trod upon these spikes, and the whole column of them was soon disabled and thrown into confusion. Some of the elephants were wounded so severely that they fell where they stood, and were unable to rise. Others, maddened with the pain which they endured, turned back and trampled their own keepers under foot in their attempts to escape from the scene. The breach, in short, soon became so choked up with the bodies of beasts and men, that the assailants were compelled to give up the contest and withdraw. A short time afterward, Polysperchon raised the siege and abandoned the city altogether.
In fact, the party of Cassander was in the end triumphant in Greece, and Polysperchon determined to return to Macedon.
In the mean time, Olympias had determined to come to Macedon, and aid Polysperchon in his contest with Cassander. She accordingly left Epirus, and with a small body of troops, with which her brother Alexander, who was then King of Epirus, furnished her, went on and joined Polysperchon on his return. Eurydice was alarmed at this; for, since she considered Olympias as her great political rival and enemy, she knew very well that there could be no safety for her or her husband if Olympias should obtain the ascendency in the court of Polysperchon. She accordingly began to call upon those around her, in the city where she was then residing, to arm themselves for her defense. They did so, and a considerable force was thus collected. Eurydice placed herself at the head of it. She sent messengers off to Cassander, urging him to come immediately and join her. She also sent an embassage to Polysperchon, commanding him, in the name of Philip the king, to deliver up his army to Cassander. Of course this was only a form, as she could not have expected that such a command would have been obeyed; and, accordingly, after having sent off these orders, she placed herself at the head of the troops that she had raised, and marched out to meet Polysperchon on his return, intending, if he would not submit, to give him battle.
Her designs, however, were all frustrated in the end in a very unexpected manner. For when the two armies approached each other, the soldiers who were on Eurydice's side, instead of fighting in her cause as she expected, failed her entirely at the time of trial. For when they saw Olympias, whom they had long been accustomed almost to adore as the wife of old King Philip, and the mother of Alexander, and who was now advancing to meet them on her return to Macedon, splendidly attended, and riding in her chariot, at the head of Polysperchon's army, with the air and majesty of a queen, they were so overpowered with the excitement of the spectacle, that they abandoned Eurydice in a body, and went over, by common consent, to Polysperchon's side.
Of course Eurydice herself and her husband Philip, who was with her at this time, fell into Polysperchon's hands as prisoners. Olympias was almost beside herself with exultation and joy at having her hated rival thus put into her power. She imprisoned Eurydice and her husband in a dungeon, so small that there was scarcely room for them to turn themselves in it; and while they were thus confined, the only attention which the wretched prisoners received was to be fed, from time to time, with coarse provisions, thrust in to them through a hole in the wall. Having thus made Eurydice secure, Olympias proceeded to wreak her vengeance on all the members of the family of Antipater whom she could get within her power. Cassander, it is true, was beyond her reach for the present; he was gradually advancing through Thessaly into Macedonia, at the head of a powerful and victorious army. There was another son of Antipater, however, named Nicanor, who was then in Macedon. Him she seized and put to death, together with about a hundred of his relatives and friends.