The Roman History · Amm. 16.12.58

And while this was going on, Chnodomarius, the king, finding an opportunity of escaping, making his way over the heaps of dead with a small escort, hastened with exceeding speed towards the camp which he had made near the two Roman fortresses of Alstatt and Lauterbourg, in the country of the Tribocci, that he might embark in some boats which had already been prepared in case of any emergency, and so escape to some secret hiding-place in which he might conceal himself.

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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