Res Gestae

And after staying there a short time, out of consideration for his tired soldiers, he felt that he ought not to delay, and made for the city of Rheims. There he had ordered the whole army to assemble with provisions for a month and to await his coming; the place was commanded by Ursicinus’ successor Marcellus, and Ursicinus himself was directed to serve in the same region until the end of the campaign.

Accordingly, after the expression of

And because the day was misty and overcast, so that even objects close at hand could not be seen, the enemy, aided by their acquaintance with the country, went around by way of a crossroad and made an attack on the two legions bringing up the rear of the Caesar’s army. And they would nearly have annihilated them, had not the shouts that they suddenly raised brought up the reinforcements of our allies.