Plutarch Eumenes 15

[1] Now Antigonus, hearing from his prisoners that Eumenes was sick and in such wretched plight as to be borne along in a litter, thought it no great task to crush the other commanders if Eumenes was sick. He therefore hastened to lead his army to battle.

[2] But when, as the enemy were forming in battle order, he had ridden past their lines and observed their shape and disposition, he was amazed, and paused for some time; then the litter was seen as it was carried from one wing to the other. At this, Antigonus gave a loud laugh, as was his wont, and after saying to his friends, This litter, it would seem, is what is arrayed against us, immediately retired with his forces and pitched his camp. ¹

[3]
  But the Macedonians opposed to him, after getting a little respite, once more acted liked a capricious mob, and, mocking at their leaders, distributed themselves in winter quarters over almost the whole of Gabene, so that the rear was separated from the van by almost a thousand furlongs. When Antigonus became aware of this, he set out suddenly against them, taking this time a road that was difficult and without water, but direct and short, hoping that, in case he fell upon them when they were scattered about in their winter quarters, it would no longer be easy for the mass of them to join their generals. But after he had entered an uninhabited country, dire winds and severe frosts gave trouble to his army and impeded their march.

[4] The only help, therefore, was to burn many fires, and this was what revealed his presence to the enemy. For the Barbarians living on the mountains which overlooked the uninhabited tract, amazed at the number of fires, sent messengers on dromedaries to Peucestas. And he, when he heard the news, being himself quite out of his mind with fear and seeing that the other officers were in a like state, set out to fly, after rousing up those of their soldiers especially who were quartered along the route.

[5] But Eumenes tried to put a stop to their confusion and panic fear, by promising so to check the speed of the enemy that they would come up three days later than they were expected. And when his hearers were persuaded, he sent round messengers with orders that the forces in winter quarters and elsewhere should assemble with all speed; at the same time, too, he himself rode forth with the other commanders, took possession of a place which could be seen at a distance by such as traversed the desert, measured it off, and ordered many fires to be made at intervals, as in an encampment.

[6] This was done, and when Antigonus saw these fires on the mountains, he was distressed and disheartened, supposing that his enemies had long been aware of his approach and were coming to meet him. In order, therefore, that he might not be forced to fight, when his men were worn and weary from their march, against those who had spent a comfortable winter and were ready for the conflict, he forsook the direct road and led his army through villages and cities, taking time to refresh it.

[7] But when no one tried to obstruct his progress, the thing which usually happens when enemies are facing one another, and when the people round about said they had seen no army, but that the place was full of lighted fires, Antigonus perceived that he had been outgeneraled by Eumenes, and in deep resentment led his forces forward to try the issue in open battle.