Antigonus being now near at hand with his army, consisting of twenty thousand Macedonian foot and one thousand three hundred horse, Aratus, with the members of council, went to meet him by sea, and got, unobserved by the enemy, to Pegae, having no great confidence either in Antigonus or the Macedonians. For he was very sensible that his own greatness had been made out of the losses he had caused them, and that the first great principle of his public conduct had been hostility to the former Antigonus. But perceiving the necessity that was now upon him, and the pressure of the time, that lord and master of those we call rulers, to be inexorable, he resolved to put all to the venture. So soon, therefore, as Antigonus was told that Aratus was coming up to him, he saluted the rest of the company after the ordinary manner, but him he received at the very first approach with especial honour, and finding him afterwards to be both good and wise, admitted him to his nearer familiarity. For Aratus was not only useful to him in the management of great affairs, but singularly agreeable also as the private companion of a king in his recreations. And therefore, though Antigonus was young, yet as soon as he observed the temper of the man to be proper for a prince's friendship, he made more use of him than of any other, not only of the Achaeans, but also of the Macedonians that were about him. So that the thing fell out to him just as the god had foreshown in a sacrifice.
For it is related that, as Aratus was not long before offering sacrifice, there were found in the liver two gall-bags inclosed in the same caul of fat; whereupon the soothsayer told him that there should very soon be the strictest friendship imaginable between him and his greatest and most mortal enemies; which prediction he at that time slighted, having in general no great faith in soothsayings and prognostications, but depending most upon rational deliberation.
At an after time, however, when, things succeeding well in the war, Antigonus made a great feast at Corinth, to which he invited a great number of guests, and placed Aratus next above him, and presently calling for a coverlet, asked him if he did not find it cold, and on Aratus's answering, "Yes, extremely cold," bade him come nearer, so that when the servants brought the coverlet, they threw it over them both, then Aratus, remembering the sacrifice, fell a laughing, and told the king the sign which had happened to him, and the interpretation of it. But this fell out a good while after.
So Aratus and the king, plighting their faith to each other at Pegae, immediately marched toward the enemy, with whom they had frequent engagements near the city, Cleomenes maintaining a strong position, and the Corinthians ****** a very brisk defence. In the meantime Aristoteles the Argive, Aratus's friend, sent privately to him to let him know that he would cause Argos to revolt, if he would come thither in person with some soldiers. Aratus acquainted Antigonus, and taking fifteen hundred men with him, sailed in boats along the shore as quickly as he could from the Isthmus to Epidaurus. But the Argives had not patience till he could arrive, but, ****** a sudden insurrection, fell upon Cleomenes's soldiers, and drove them into the citadel. Cleomenes having news of this, and fearing lest, if the enemy should possess themselves of Argos, they might cut off his retreat home, leaves the Acro-Corinthus and marches away by night to help his men. He got thither first, and beat off the enemy, but Aratus appearing not long after, and the king approaching with his forces, he retreated to Mantinea, upon which all the cities again came over to the Achaeans, and Antigonus took possession of the Acro-Corinthus. Aratus, being chosen general by the Argives, persuaded them to make a present to Antigonus of the property of the tyrants and the traitors. As for Aristomachus, after having put him to the rack in the town of Cenchreae, they drowned him in the sea; for which, more than anything else, Aratus was reproached, that he could suffer a man to be so lawlessly put to death, who was no bad man, had been one of his long acquaintance, and at his persuasion had abdicated his power and annexed the city to the Achaeans.