Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
Leaving this region we came to an estate called Hucumbra, where contrary to our expectation we refreshed ourselves for two days, procuring everything that was useful and an abundance of grain; then we moved on after immediately burning everything except such things as time allowed us to carry off.
On the following day, as the army was advancing more quietly, the Persians unexpectedly attacked the last division, which on that day chanced to have the duty of bringing up the rear, and would have slain them with little trouble, had not our cavalry, who were near by, quickly noticed this, and, spreading widely over the open valleys, prevented so great a disaster, inflicting wounds on those who came up with them.
In this battle Adaces, a distinguished satrap, fell; he had once been sent as an envoy to the emperor Constantius and kindly received. The man who killed him brought his armour to Julian and received the reward which he deserved.
On that same day the legions made complaint of the cavalry troop of the Tertiaci, on the ground that just as they themselves were forcing their way into the opposing lines of the enemy, the Tertiaci had gradually given way and so had damped the ardour of almost the entire army.
At this the emperor was roused to righteous indignation, had their standards taken from them and their lances broken, and forced all those who were charged with running away to march with the packs, baggage, and prisoners; but their leader, who alone had fought bravely, was given the command of another troop, whose tribune was found guilty of having shamefully left the field.
Also four other tribunes of the cavalry were dismissed for similar disgraceful conduct; for in view of the impending difficulties the emperor contented himself with this mild form of punishment.
We then advanced for seventy stadia, while every kind of supplies grew less, since the grass
Leaving this place as well, the whole army had come to a district called Maranga, when near daybreak a huge force of Persians appeared with Merena, general of their cavalry, two sons of the king, and many other magnates.