[1] It chanced that at that time Valens was at last called forth from Antioch, and after making the long journey arrived at Constantinople, where his stay was for only a very few days, ¹ and he was disturbed by a slight outbreak of the populace. He gave the command of the infantry, which Trajanus had formerly held, to Sebastianus, a leader of recognized vigilance, who had shortly before been sent from Italy at his own request. ² He himself went to the imperial villa Melanthias ³ and tried to win the favour of the soldiers by pay, supplies, and many flattering words.

[2] Having commanded a march from there by written order, ⁴ he came to the military post called Nice, ⁵ where he learned from the report of scouts that the barbarians, laden with rich spoils, had returned from the lands at the foot of Rhodope to the neighbourhood of Hadrianopolis; they, on hearing that the emperor was on the march with a large force, were hastening to join their countrymen, who were staying in a permanent garrison near Beroea and Nicopolis. At once, as timeliness of the offered opportunity demanded, Sebastianus had been directed to choose three hundred soldiers from each legion and hasten to the spot, to do, as he promised, something advantageous to the state.

[3] He advanced by rapid marches until he was seen near Hadrianopolis, when the gates were strongly barred, and he was not allowed to approach them; for the besieged feared that he came as one who had been captured by the enemy, and won over to their side, and some harm might be caused to the city; such as had happened through the general Acacius, when the troops of Magnentius had captured him by treachery, and brought about the opening of the fastnesses of the Julian Alps.

[4] However, when Sebastianus was recognized, although late, and allowed to enter the city, his men were refreshed with such food and rest as were available; and on the following morning he sallied forth in secret haste. Just as evening was coming on some predatory bands of Goths suddenly came in sight near the river Hebrus, whereupon Sebastianus remained hidden for a time behind mounds and thickets; and when it was dark night he advanced with light step and fell upon them in their sleep, inflicting such a defeat upon them that all the rest perished except a few, whom swiftness of foot saved from death. He brought back countless booty, which was too great to be contained in the city and the broad plain about it.

[5] Fritigern was greatly alarmed by this stroke, and feared lest the general, whom he had always heard to be successful, ⁶ might make an unexpected attack upon his scattered and heedless bands, which were intent only upon pillage, and utterly destroy them; he therefore recalled all his men to the vicinity of the town of Cabyle and quickly left that neighbourhood, in order that his people, by living in the open plains, might not suffer from famine or from secret attacks.

[6] While this was going on in Thrace, Gratian, having informed his uncle by letter with what energy he had overthrown the Alamanni, sent on ahead by land all his baggage and packs, and descending the Danube with a band of light-armed troops, came to Bononia ⁷ and entered Sirmium. Having delayed there for four days, he went on over the same river to the Camp of Mars, ⁸ although attacked by intermittent fevers. In that region the Halani unexpectedly fell upon him, and he lost a few of his followers.