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).
The messenger did not dare to enter the city, and the letter was delivered by a certain Christian and read: but it was scorned, as was fitting, and the rest of the day and the whole night were spent in preparing defensive works. For the gates were blocked from within with huge rocks, the unsafe parts of the walls were strengthened, artillery was placed in suitable places for hurling missiles or rocks in all directions, and a supply of water that was sufficient was stored nearby; for on the day before some of those who fought were tormented with thirst almost to the point of death.
The Goths on the other hand, bearing in mind the dangerous chances of war, and worried from seeing their bravest men stretched dead or wounded, while their strength was being worn away bit by bit, formed a clever plan, which Justice herself revealed.
For they enticed some of our subalterns, who had deserted to them the day before, to simulate flight, as if returning to their own side, and to manage to be admitted within the walls, and when let in, secretly to set fire to some part of the city; in order that as if a kind of secret signal had been raised, while the attention of the throng of the besieged was distracted with[*](For this meaning of circa, cf. occupatam circa messem agrestem, xxix. 6, 6.) extinguishing the flames, the city, left undefended, might be broken into.
The subalterns went on their way as had been arranged, and when they had come near the moat, with outstretched hands and prayers they begged to be admitted, as being Romans. And they were let in, as there was no suspicion to prevent it; but on being questioned
So, when all the preparations for battle had been made, the barbarians just before the beginning of the third watch, since the fear caused by their former wounds had died out, poured in more numerous masses upon the barred gates of the city, with the great persistency ofthose who are guarding against disaster.[*](Text and meaning are somewhat uncertain.) But with the soldiers the provincials and the court attendants rose up with all the greater vigour to overwhelm them, and such were the numbers of the foe that weapons of every kind, even though thrown at random, could not fall without effect.
Our men noticed that the barbarians were using the same missiles that had been hurled at them. And so it was ordered that the cords by which the barbs were fastened to the shaft should be partly severed before the arrows were shot from the bows; these during their flight kept their whole strength, and when they were fixed in the bodies of the enemy lost none of their effectiveness, or at any rate, if they found no mark, were at once broken.