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.

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.