History of the Peloponnesian War

And at every tenth battlement there were high towers of the same width as the wall, extending both to the inner and outer faces of it, so that there was no passage left at the sides of the towers, but the guards had to go through the middle of them.

Now at night when the weather was rainy the guards left the battlements and kept watch from the towers, which were not far apart and were roofed overhead. Such, then, was the wall by which the Plataeans were beleaguered.

After the Plataeans had finished their preparations, they waited for a night that was stormy with rain and wind and at the same time moonless, and then went forth. They were led by the men who were the authors of the enterprise. First they crossed the ditch which surrounded the town, then reached the foot of the enemy's wall unobserved by the guards, who in the all-pervading darkness could not see ahead and could not hear because the clatter of the wind drowned the noise of their approach;

and, besides, they kept a good distance apart as they advanced, in order that their arms might not rattle against each other and cause detection. And they were not only lightly armed but also had only the left foot sandalled, for security against slipping in the mud.

So they came up to the battlements at a space between two towers, knowing that the battlements were deserted. First came the men with the ladders, who set them against the wall; next came twelve light-armed men, with dagger and corslet only, who mounted the ladders. These were led by Ammeas son of Coroebus, who was the first to ascend, and after him his followers ascended, six men going against each of the adjoining towers. Next after these came other light troops armed with short spears, their shields being borne by another group which followed, that the former might advance more easily; and their shields were to be handed them when they were close to the enemy.