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).
At that same time Constantius, apprised by approaching rumour that when Caesar was blockaded at Sens, Marcellus had not brought aid,[*](Cf. xvi. 4, 3.) discharged the latter from the army and commanded him to depart to his home. Whereupon Marcellus, as if staggered by a grievous insult, began to contrive a plot against Julian, presuming on Augustus, whose ears were open to every slander.
And so,
While he was freely forging these accusations, Eutherius (as he requested) was brought in, and being commanded to say what he wished, modestly and in few words showed that the truth was veiled with lies. For while the commander of the heavy-armed infantry (as was believed) deliberately held back, Caesar, who had long been blockaded in Sens, had by his watchful energy driven back the barbarians; and Eutherius staked his own head on the promise that Julian would be a loyal servitor to his superior, so long as he should live.