History of the Peloponnesian War
Thucydides
Thucydides. The English works of Thomas Hobbes of Malmesbury. Hobbes, Thomas. translator. London: John Bohn, 1843.
About the same time, Simonides, an Athenian commander, having drawn a few Athenians together out of the garrisons and a number of the confederates of those parts, took the city of Eion in Thrace, a colony of the Mendaeans, that was their enemy, by treason, but was presently again driven out by the Chalcideans and Bottiaeans that came to succour it, and lost many of his soldiers.
When the Peloponnesians were returned out of Attica, they of the city of Sparta and of other the neighboring towns went presently to the aid of Pylus; but [the rest of] the Lacedaemonians came slowlier on, as being newly come from the former expedition.
Nevertheless they sent about to the cities of the Peloponnesus to require their assistance with all speed at Pylus, and also to their threescore galleys that were at Corcyra, which, transported over the isthmus of Leucas, arrived at Pylus unseen of the Athenian galleys lying at Zacynthus. And by this time their army of foot was also there.
Whilst the Peloponnesian galleys were coming toward Pylus, Demosthenes sent two galleys secretly to Eurymedon and the Athenian fleet at Zacynthus, in all haste, to tell them that they must come presently to him for as much as the place was in danger to be lost.
And according as Demosthenes' message imported, so the fleet made haste. The Lacedaemonians in the meantime prepared themselves to assault the fort both by sea and land, hoping easily to win it, being a thing built in haste and not many men within it.
And because they expected the coming of the Athenian fleet from Zacynthus, they had a purpose, if they took not the fort before, to bar up the entries of the harbour.
For the island called Sphacteria, lying just before and very near to the place, maketh the haven safe and the entries straight, one of them, nearest to Pylus and to the Athenian fortification, admitting passage for no more but two galleys in front; and the other, which lieth against the other part of the continent, for not above eight or nine. The island, by being desert, was all wood and untrodden, in bigness, about fifteen furlongs over. Therefore they determined with their galleys thick set, and with the beak-heads outward, to stop up the entries of the haven.