History of the Peloponnesian War

They worked the whole of this first day, but on the next day toward evening when the wall was all but finished the garrison of Nisaea, becoming alarmed by the shortage of food, seeing that they received provisions from the upper-city for only a day at a time, and not anticipating any speedy relief from the Peloponnesians, and believing the Megarians to be hostile, capitulated to the Athenians on condition that they should give up their arms and pay a ransom of a stipulated amount for each man; as for the Lacedaemonians in the garrison, the commander or anyone else, they were to be disposed of as the Athenians might wish. On these terms they came to an agreement and marched out.

The Athenians then made a breach in the long walls in order to separate them from the wall of the city of Megara, took possession of Nisaea, and proceeded with their other preparations.