History of the Peloponnesian War

So that for many reasons it happened that they returned quicker than usual, and that this was the shortest incursion they had made; for they remained in Attica but fifteen days.

At this same period, Simonides, an Athenian commander, having got together a few Athenians from the guard-stations, and a large body of the allies in that neighbourhood, took possession of Eion in Thrace, a colony from Mende, and hostile [to Athens], which was betrayed to him. But the Chalcidians and Bottiaeans having immediately come to its rescue, he was beaten out of it, and lost many of his soldiers.

On the return of the Peloponnesians from Attica, the Spartans themselves and the nearest of the Perioeci immediately went to the rescue of Pylus; but the other Lacedaemonians were more slow in marching against it, as they had but just reached home from a different expedition.

They despatched orders also through the rest of the Peloponnese to bring up their reinforcements to Pylus as quickly as possible and sent for their sixty ships at Corcyra. These having been hauled over the isthmus of Leucas, and having so escaped the observation of the Athenian fleet at Zacynthus, reached Pylus; the land-forces also having by that time arrived.

While the Peloponnesians were yet sailing up, Demosthenes anticipated them by secretly sending two ships with a message to Eurymedon and the Athenians on board the fleet at Zacynthus to join him, as the place was in danger.