History of the Peloponnesian War

Meanwhile the people of Corcyra, becoming alarmed lest the ships should attack them, conferred with the suppliants and also with the other members of the opposite faction on the best means of saving the city. And some of them they persuaded to go on board the ships; for in spite of all the Corcyraeans had manned thirty ships.

But the Peloponnesians, after ravaging the land till midday, sailed away, and toward night a signal was flashed to them that sixty Athenian ships were approaching from Leucas. These ships had been sent by the Athenians, under the command of Eurymedon son of Thucles, when they learned of the revolution at Corcyra and that the fleet under Alcidas was about to sail thither.