The enemy's provisions for war stood thus: Mithridates, like the Sophists, boastful and haughty at first, set upon the Romans, with a very inefficient army, such, indeed, as made a good show, but was nothing for use; but being shamefully routed, and taught a lesson for a second engagement, he reduced his forces to a proper, serviceable shape. Dispensing with the mixed multitudes, and the noisy menaces of barbarous tribes of various languages, and with the ornaments of gold and precious stones, a greater temptation to the victors than security to the bearers, he gave his men broad swords like the Romans', and massy shields; chose horses better for service than show, drew up an hundred and twenty thousand foot in the figure of the Roman phalanx, and had sixteen thousand horse, besides chariots armed with scythes, no less than a hundred. Besides which, he set out a fleet not at all cumbered with gilded cabins, luxurious baths, and women's furniture, but stored with weapons and darts, and other necessaries, and thus made a descent upon Bithynia. Not only did these parts willingly receive him again, but almost all Asia regarded him as their salvation from the intolerable miseries which they were suffering from the Roman money-lenders and revenue farmers. These, afterwards, who like harpies stole away their very nourishment, Lucullus drove away, and at this time, by reproving them, did what he could to make them more moderate, and to prevent a general secession, then breaking out in all parts. While Lucullus was detained in rectifying these matters, Cotta, finding affairs ripe for action, prepared for battle with Mithridates; and news coming from all hands that Lucullus had already entered Phrygia, on his march against the enemy, he, thinking he had a triumph all but actually in his hands, lest his colleague should share in the glory of it, hasted to battle without him. But being routed, both by sea and land, he lost sixty ships with their men, and four thousand foot, and himself was forced into and besieged in Chalcedon, there waiting for relief from Lucullus. There were those about Lucullus who would have had him leave Cotta, and go forward, in hope of surprising the defenceless kingdom of Mithridates. And this was the feeling of the soldiers in general, who were indignant that Cotta should by his ill-counsel not only lose his own army, but hinder them also from conquest, which at that time, without the hazard of a battle, they might have obtained. But Lucullus, in a public address, declared to them that he would rather save one citizen from the enemy, than be master of all that they had.
Archelaus, the former commander in Boeotia under Mithridates, who afterwards deserted him and accompanied the Romans, protested to Lucullus that, upon his bare coming, he would possess himself of all Pontus. But he answered, that it did not become him to be more cowardly than huntsmen, to leave the wild beasts abroad and seek after sport in their deserted dens. Having so said, he made towards Mithridates with thirty thousand foot and two thousand five hundred horse. But on being come in sight of his enemies, he was astonished at their numbers, and thought to forbear fighting, and wear out time. But Marius, whom Sertorius had sent out of Spain to Mithridates with forces under him, stepping out and challenging him, he prepared for battle. In the very instant before joining battle, without any perceptible alteration preceding, on a sudden the sky opened, and a large luminous body fell down in the midst between the armies, in shape like a hogshead, but in colour like melted silver, insomuch that both armies in alarm withdrew. This wonderful prodigy happened in Phrygia, near Otryae. Lucullus after this began to think with himself that no human power and wealth could suffice to sustain such great numbers as Mithridates had for any long time in the face of an enemy, and commanded one of the captives to be brought before him, and first of all asked him how many companions had been quartered with him and how much provision he had left behind him, and when he had answered him, commanded him to stand aside; then asked a second and a third the same question; after which, comparing the quantity of provision with the men, he found that in three or four days' time his enemies would be brought to want. This all the more determined him to trust to time, and he took measures to store his camp with all sorts of provision, and thus living in plenty, trusted to watch the necessities of his hungry enemy.
This made Mithridates set out against the Cyzicenians, miserably shattered in the fight at Chalcedon, where they lost no less than three thousand citizens and ten ships. And that he might the safer steal away unobserved by Lucullus, immediately after supper, by the help of a dark and wet night, he went off, and by the morning gained the neighbourhood of the city, and sat down with his forces upon the Adrastean mount. Lucullus, on finding him gone, pursued, but was well pleased not to over-take him with his own forces in disorder; and he sat down near what is called the Thracian village, an admirable position for commanding all the roads and the places whence, and through which, the provisions for Mithridates's camp must of necessity come. And judging now of the event, he no longer kept his mind from his soldiers, but when the camp was fortified and their work finished, called them together, and with great assurance told them that in a few days, without the expense of blood, he would give them victory.