(5.83) In the ensuing winter the Lacedaemonians, hearing of the progress of the work, made an expedition to Argos with their allies, all but the Corinthians; there was also a party at Argos itself acting in their interest. Agis the son of Archidamus, king of the Lacedaemonians, led the army. The support which they expected to find at Argos was not forthcoming; the walls however, which were not yet finished, were captured by them and razed to the ground; they also seized Hysiae, a place in the Argive territory, and put to death all the free men whom they caught; they then withdrew, and returned to their several cities. Next the Argives in their turn made an expedition into the territory of Phlius, which they ravaged because the Phliasians had received the Argive refugees, most of whom had settled there; they then returned home.
During the same winter the Athenians blockaded Perdiccas in Macedonia, complaining of the league which he had made with the Argives and Lacedaemonians; and also that he had been false to their alliance when they had prepared to send an army against the Chalcidians and against Amphipolis under the command of Nicias the son of Niceratus. The army was in fact disbanded chiefly owing to his withdrawal. So he became their enemy. Thus the winter ended, and with it the fifteenth year of the war.