History of the Peloponnesian War

Meanwhile the first of the scaling-party that had got up, after carrying both the towers and putting the sentinels to the sword, posted themselves inside to prevent any one coming through against them; and rearing ladders from the wall, sent several men up on the towers, and from their summit and base kept in check all of the enemy that came up, with their missiles, while their main body planted a number of ladders against the wall, and knocking down the battlements, passed over between the towers;

each as soon as he had got over taking up his station at the edge of the ditch, and plying from thence with arrows and darts any who came along the wall to stop the passage of his comrades.

When all were over, the party on the towers came down, the last of them not without difficulty, and proceeded to the ditch, just as the three hundred came up carrying torches.

The Plataeans, standing on the edge of the ditch in the dark, had a good view of their opponents, and discharged their arrows and darts upon the unarmed parts of their bodies, while they themselves could not be so well seen in the obscurity for the torches; and thus even the last of them got over the ditch, though not without effort and difficulty;

as ice had formed in it, not strong enough to walk upon, but of that watery kind which generally comes with a wind more east than north, and the snow which this wind had caused to fall during the night, had made the water in the ditch rise, so that they could scarcely breast it as they crossed. However, it was mainly the violence of the storm that enabled them to effect their escape at all.