History of the Peloponnesian War

when their preparations were completed, they waited for a stormy night of wind and rain and without any moon, and then set out, guided by the authors of the enterprise. Crossing first the ditch that ran round the town, they next gained the wall of the enemy unperceived by the sentinels, who did not see them in the darkness, or hear them, as the wind drowned with its roar the noise of their approach;

besides which they kept a good way off from each other, that they might not be betrayed by the clash of their weapons. They were also lightly equipped, and had only the left foot shod to preserve them from slipping in the mire.

They came up to the battlements at one of the intermediate spaces where they knew them to be unguarded: those who carried the ladders went first and planted them; next twelve light-armed soldiers with only a dagger and a breastplate mounted, led by Ammias, son of Coroebus, who was the first on the wall; his followers getting up after him and going six to each of the towers. After these came another party of light troops armed with spears, whose shields, that they might advance the easier, were carried by men behind, who were to hand them to them when they found themselves in presence of the enemy.

After a good many had mounted they were discovered by the sentinels in the towers, by the noise made by a tile which was knocked down by one of the Plataeans as he was laying hold of the battlements.