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 length, after the mutiny had been quelled, not without various sorts of fair words, they built a pontoon bridge and crossed the Rhine; but when they set foot in the lands of the Alamanni, Severus, master of the horse, who had previously been a warlike and energetic officer, suddenly lost heart.