History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
Inaros, however, the king of the Libyans, who had been the originator of the whole movement in Egypt, was taken by treachery and impaled.
And when fifty triremes, which sailed to Egypt from Athens and the rest of the confederacy to relieve the fleet there, put in at the Mendesian mouth of the Nile, quite unaware of what had happened, the infantry fell upon them from the shore and a Phoenician fleet from the sea and destroyed most of the ships, a small number only escaping. So ended the great expedition against Egypt of the Athenians and their allies.
And now Orestes son of Echecratidas, king of the Thessalians, who was exiled from Thessaly, persuaded the Athenians to restore him. And they, taking along some Boeotians and Phocians who were allies, made an expedition against Pharsalus in Thessaly. And though they made themselves masters of the land, so far as this was possible without going far from their camp—for the Thessalian cavalry hemmed them in—they failed to capture the city and indeed none of the other objects of their expedition was attained, so they went back home again unsuccessful, having Orestes with them.
Not long after this[*](454 B.C.) one thousand Athenians, embarking on the ships at Pegae, which was now in their possession,[*](cf. Thuc. 1.103.4.) sailed along the coast to Sicyon under the command of Pericles son of Xanthippus, and disembarking defeated in battle the Sicyonians who came out against them.
Immediately thereafter, taking along some Achaeans and sailing across the gulf, they made an expedition against Oeniadae in Acarnania and laid siege to it; but failing to take it they went back home.