Finding the message credible, they first landed many of the Persians on the islet of Psyttalea, which lies between Salamis and the mainland. When it was midnight, they brought their western wing in a circle towards Salamis, and those stationed at Ceos and Cynosura also put out to sea, occupying all the passage as far as Munychia with their ships. They launched their ships in this way so that the Hellenes would have no escape: they would be trapped at Salamis and pay the penalty for the battles at Artemisium. The purpose of their landing Persians on the islet called Psyttalea was this: when the battle took place, it was chiefly there that the men and wrecks would be washed ashore, for the island lay in the path of the impending battle. The Persians would be able to save some of those who washed up and kill the others. They did this in silence for fear that their enemies hear, making their preparations at night without sleep.