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.