Besides the other vessels, Pompey took ninety ships with beaks of brass; and the prisoners amounted to 20,000. He did not choose to put them to death, and at the same time he thought it wrong to suffer them to disperse, because they were not only numerous, but warlike and necessitous, and therefore would probably knit again and give future trouble. He reflected, that man by nature is neither a savage nor an unsocial creature; and when he becomes so, it is by vices contrary to nature; yet even then he may be humanized by changing his place of abode, and accustoming him to a new manner of life; as beasts that are naturally wild put off their fierceness when they are kept in a domestic way. For this reason he determined to remove the pirates to a great distance from the sea, and bring them to taste the sweets of civil life, by living in cities, and by the culture of the ground. He placed some of them in the little towns of Cilicia, which were almost desolate, and which received them with pleasure, because at the same time he gave them an additional proportion of lands. He repaired the city of Soli, which had lately been dismantled and deprived of its inhabitants by Tigranes, king of Armenia, and peopled it with a number of these corsairs. The remainder, which was a considerable body, he planted in Dyma, a city of Achaia, which, though it had a large and fruitful territory, was in want of inhabitants.
Pompey, having secured the sea from Phoenicia to the Bosphorus, marched in quest of Mithridates, who had an army of 30,000 foot and 2,000 horse, but durst not stand an engagement. That prince was in possession of a strong and secure post upon a mountain, which he quitted upon Pompey's approach, because it was destitute of water. Pompey encamped in the same place; and conjecturing, from the nature of the plants and the crevices in the mountain, that springs might be found, he ordered a number of wells to be dug, and the camp was in a short time plentifully supplied with water. He was not a little surprised that this did not occur to Mithridates during the whole time of his encampment there.
After this, Pompey followed him to his new camp, and drew a line of circumvallation round him. Mithridates stood a siege of forty-five days, after which he found means to steal off with his best troops, having first killed all the sick, and such as could be of no service. Pompey overtook him near the Euphrates, and encamped over against him; but fearing he might pass the river unperceived, he drew out his troops at midnight. At that time Mithridates is said to have had a dream prefigurative of what was to befall him. He thought he was upon the Pontic Sea, sailing with a favorable wind, and in sight of the Bosphorus; so that he felicitated his friends in the ship, like a man perfectly safe, and already in harbor. But suddenly he beheld himself in the most destitute condition, swimming upon a piece of wreck. While he was in all the agitation which this dream produced, his friends awaked him, and told him that Pompey was at hand. He was now under a necessity of fighting for his camp, and his generals drew up the forces with all possible expedition.
Pompey, seeing them prepared, was loth to risk a battle in the dark. He thought it sufficient to surround them, so as to prevent their flight; and what inclined him still more to wait for daylight, was the consideration that his troops were much better than the enemy's. However, the oldest of his officers entreated him to proceed immediately to the attack, and at last prevailed. It was not indeed very dark; for the moon, though near her setting, gave light enough to distinguish objects. But it was a great disadvantage to the king's troops, that the moon was so low, and on the backs of the Romans; because she projected their shadows so far before them, that the enemy could form no just estimate of the distances, but thinking them at hand, threw their javelins before they could do the least execution.
The Romans, perceiving their mistake, advanced to the charge with all the alarm of voices. The enemy were in such a consternation, that they made not the least stand, and, in their flight, vast numbers were slain. They lost above 10,000 men, and their camp was taken. As for Mithridates, he broke through the Romans with 800 horses, in the beginning of the engagement. That corps, however, did not follow him far before they dispersed, and left him with only three of his people.
The pursuit of Mithridates was attended with great difficulties; for he concealed himself among the nations settled about the Bosphorus and the Palus Maeotis. Besides, news was brought to Pompey that the Albanians had revolted, and taken up arms again. The desire of revenge determined him to march back, and chastise them. But it was with infinite trouble and danger that he passed the Cyrnus again, the barbarians having fenced it on their side with palisades all along the banks. And when he was over, he had a large country to traverse, which afforded no water. This last difficulty he provided against by filling 10,000 bottles; and pursuing his march, he found the enemy drawn up on the banks of the river Abas, to the number of 60,000 foot and 12,000 horse, but many of them ill-armed, and provided with nothing of the defensive kind but skins of beasts.
They were commanded by the king's brother, named Cosis; who, at the beginning of the battle, singled out Pompey, and rushing in upon him, struck his javelin into the joints of his breastplate. Pompey in return run him through with his spear, and laid him dead on the spot. It is said that the Amazons came to the assistance of the barbarians from the mountains near the river Thermodon, and fought in this battle. The Romans, among the plunder of the field, did, indeed, meet with bucklers in the form of a half-moon, and such buskins as the Amazons wore; but there was not the body of a woman found among the dead. They inhabit that part of Mount Caucasus which stretches toward the Hyrcanian Sea, and are not next neighbors to the Albanians; for Gelae and Leges lie between; but they meet that people, and spend two months with them every year on the banks of the Thermodon; after which they retire to their own country.
Pompey had advanced near to Petra, and encamped, and was taking some exercise on horseback without the trenches, when messengers arrived from Pontus; and it was plain they brought good news, because the points of their spears were crowned with laurel. The soldiers seeing this, gathered about Pompey, who was inclined to finish his exercise before he opened the packet; but they were so earnest in their entreaties, that they prevailed upon him to alight and take it. He entered the camp with it in his hand; and as there was no tribunal ready, and the soldiers were too impatient to raise one of turf, which the common method, they piled a number of pack-saddles one upon the other, upon which Pompey mounted, and gave them this information: "Mithridates is dead. He killed himself upon the revolt of his son Pharnaces. And Pharnaces has seized all that belonged to his father; which he declares he has done for himself and Romans."
At this news the army, as might be expected, gave a loose rein to their joy, which they expressed in sacrifices to the gods, and in reciprocal entertainments, as if 10,000 of their enemies had been slain in Mithridates. Pompey having thus brought the campaign and the whole war to a conclusion so happy, and so far beyond his hopes, immediately quitted Arabia, traverses the provinces between that and Galatia with great rapidity, and soon arrived at Amisus. There he found many presents from Pharnaces, and several corpses of the royal family, among which was that of Mithridates. As for Pompey, he would not see the body, but to propitiate the avenging Nemesis, sent it to Sinope. However, he looked upon and admired the magnificence of his habit, and the size and beauty of his arms. The scabbard of his sword cost four hundred talents, and the diadem was of most exquisite workmanship.
Pompey having thoroughly settled the affairs of Asia, hoped to return to Italy the greatest and happiest of men.