The Roman History · Amm. 31.11.6

While these events were proceeding in Thrace, Gratian having sent letters to inform his uncle of the energy with which he had overcome the Allemanni, and forwarded his baggage by land, himself, with a picked band of his quickest troops, crossed the Danube, reached Bononia, and afterwards Sirmium, where he halted four days. He then descended the river to the Camp of Mars, where he was laid up by an intermittent fever, and, being suddenly assailed by the Alani, lost a few of his followers.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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