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.

Touching at Corycus in the territory of Erythrae, he spent the night there. And the Athenian fleet from Samos, which was on its way to Chios with the troops, also came to anchor there at the other side of the town, a hill intervening, so that neither fleet had seen the other.

But Astyochus received during the night a letter from Pedaritus saying that some Erythraean prisoners that had been set at liberty had arrived at Erythrae from Samos for the purpose of betraying it; he therefore immediately set sail again for Erythrae, and thus narrowly escaped falling in with the Athenians.