History of the Peloponnesian War

Now when Alcibiades learned of this, he again urged Endius and the other ephors not to shrink from the expedition, saying that their fleet would have completed the voyage before the Chians could hear of the disaster to their ships, and that he himself, when he reached Ionia, would easily persuade the cities to revolt by telling them of the weakness of the Athenians and the zeal of the Lacedaemonians; for he would be more readily believed than others.

And to Endius he said privately that it would be an honour for him, through the agency of Alcibiades, to cause Ionia to revolt and to make the King an ally to the Lacedaemonians, urging him not to let this become the achievement of Agis;

for he happened himself to be at variance with Agis.[*](He was suspected of an intrigue with the wife of Agis (Plutarch, Alcib. 23).) So having persuaded Endius and the other ephors, he put to sea with the five ships in company with Chalcideus the Lacedaemonian, and they made the voyage with all speed.