Meanwhile the Chians and Pedaritus, undeterred by the backwardness of Astyochus, went on sending messengers pressing him to come with all the fleet to assist them against their besiegers, and not to leave the greatest of the allied states in Ionia to be shut up by sea and overrun and pillaged by land. There were more slaves at Chios than in any one other city except Lacedaemon, and being also by reason of their numbers punished more rigorously when they offended, most of them, when they saw the Athenian armament firmly established in the island with a fortified position, immediately deserted to the enemy, and through their knowledge of the country did the greatest mischief. The Chians therefore urged upon Astyochus that it was his duty to assist them, while there was still a hope and a possibility of stopping the enemy's progress, while Delphinium was still in process of fortification and unfinished, and before the completion of a higher rampart which was being added to protect the camp and fleet of their besiegers. Astyochus now saw that the allies also wished it and prepared to go, in spite of his intention to the contrary owing to the threat already referred to.
In the meantime news came from Caunus of the arrival of the twenty-seven ships with the Lacedaemonian commissioners; and Astyochus, postponing everything to the duty of convoying a fleet of that importance, in order to be more able to command the sea, and to the safe conduct of the Lacedaemonians sent as spies over his behaviour, at once gave up going to Chios and set sail for Caunus.
As he coasted along he landed at the Meropid Cos and sacked the city, which was unfortified and had been lately laid in ruins by an earthquake, by far the greatest in living memory, and, as the inhabitants had fled to the mountains, overran the country and made booty of all it contained, letting go, however, the free men. From Cos arriving in the night at Cnidus he was constrained by the representations of the Cnidians not to disembark the sailors, but to sail as he was straight against the twenty Athenian vessels, which with Charminus, one of the commanders at Samos, were on the watch for the very twenty-seven ships from Peloponnese which Astyochus was himself sailing to join; the Athenians in Samos having heard from Melos of their approach, and Charminus being on the look-out off Syme, Chalce, Rhodes, and Lycia, as he now heard that they were at Caunus.
Astyochus accordingly sailed as he was to Syme, before he was heard of, in the hope of catching the enemy somewhere out at sea.
Rain, however, and foggy weather encountered him, and caused his ships to straggle and get into disorder in the dark. In the morning his fleet had parted company and was most of it still straggling round the island, and the left wing only in sight of Charminus and the Athenians, who took it for the squadron which they were watching for from Caunus, and hastily put out against it with part only of their twenty vessels, and attacking immediately sank three ships and disabled others, and had the advantage in the action until the main body of the fleet unexpectedly hove in sight, when they were surrounded on every side. Upon this they took to flight, and after losing six ships with the rest escaped to Teutlussa or Beet Island, and from thence to Halicarnassus. After this the Peloponnesians put into Cnidus and, being joined by the twenty-seven ships from Caunus, sailed all together and set up a trophy in Syme, and then returned to anchor at Cnidus.
As soon as the Athenians knew of the sea-fight, they sailed with all the ships at Samos to Syme, and, without attacking or being attacked by the fleet at Cnidus, took the ships' tackle left at Syme, and touching at Lorymi on the mainland sailed back to Samos. Meanwhile the Peloponnesian ships, being now all at Cnidus, underwent such repairs as were needed; while the eleven Lacedaemonian commissioners conferred with Tissaphernes, who had come to meet them, upon the points which did not satisfy them in the past transactions, and upon the best and mutually most advantageous manner of conducting the war in future. The severest critic of the present proceedings was Lichas, who said that neither of the treaties could stand, neither that of Chalcideus, nor that of Therimenes; it being monstrous that the King should at this date pretend to the possession of all the country formerly ruled by himself or by his ancestors- a pretension which implicitly put back under the yoke all the islands- Thessaly, Locris, and everything as far as Boeotia- and made the Lacedaemonians give to the Hellenes instead of liberty a Median master. He therefore invited Tissaphernes to conclude another and a better treaty, as they certainly would not recognize those existing and did not want any of his pay upon such conditions. This offended Tissaphernes so much that he went away in a rage without settling anything.