Some connections and kinsmen of the king had been taken in Byzantium, on its capture from the Medes, when he was first there, after the return from Cyprus. These captives he sent off to the king without the knowledge of the rest of the allies, the account being that they had escaped from him.

He managed this with the help of Gongylus, an Eretrian, whom he had placed in charge of Byzantium and the prisoners. He also gave Gongylus a letter for the king, the contents of which were as follows, as was afterwards discovered:

‘Pausanias, the general of Sparta, anxious to do you a favour, sends you these his prisoners of war. I propose also, with your approval, to marry your daughter, and to make Sparta and the rest of Hellas subject to you. I may say that I think I am able to do this, with your co-operation. Accordingly if any of this please you, send a safe man to the sea through whom we may in future conduct our correspondence.’

This was all that was revealed in the writing, and Xerxes was pleased with the letter. He sent off Artabazus, son of Pharnaces, to the sea with orders to supersede Megabates, the previous governor in the satrapy of Daskylion, and to send over as quickly as possible to Pausanias at Byzantium a letter which he entrusted to him; to show him the royal signet, and to execute any commission which he might receive from Pausanias on the king's matters, with all care and fidelity.

Artabazus on his arrival carried the king's orders into effect, and sent over the letter,