History of the Peloponnesian War
Thucydides
Thucydides. The English works of Thomas Hobbes of Malmesbury. Hobbes, Thomas. translator. London: John Bohn, 1843.
In the morning betimes they dislodged and put themselves on their march again, and forced their way to the hill which the enemy had fortified, where they found before them the Syracusian foot embattled in great length above the fortification [on the hill's side];
for the place itself was but narrow. The Athenians coming up assaulted the wall; but the shot of the enemy, who were many, and the steepness of the hill (for they could easily cast home from above) making them unable to take it, they retired again and rested.
There happened withal some claps of thunder and a shower of rain, as usually falleth out at this time of the year, being now near autumn, which further disheartened the Athenians, who thought that also this did tend to their destruction.
Whilst they lay still, Gylippus and the Syracusians sent part of their army to raise a wall at their backs, in the way they had come; but this the Athenians hindered by sending against them part of theirs.