The Roman History · Amm. 16.2.10

And because the weather, being damp and misty, prevented even what was near from being seen, the enemy, availing themselves of their knowledge of the country, came by an oblique road upon the Cæsar's rear, and attacked two legions while they were piling their arms; and they would almost have destroyed them if the uproar which suddenly arose had not brought the auxiliary troops of the allies to their support.

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
Passage preview. Read in context for the complete text, notes and references.