they had been approaching, and when they had come and the Barbarians
had them in their power, the greater number of them were branded by
command of Xerxes with the royal marks, beginning with their leader
Leontiades, the same whose son Eurymachos was afterwards slain by the
Plataians, when he had been made commander of four hundred Thebans and
had seized the city of the Plataians.[235]

234. Thus did the Hellenes at Thermopylai contend in fight; and Xerxes
summoned Demaratos and inquired of him, having first said this:
"Demaratos, thou art a good man; and this I conclude by the truth of
thy words, for all that thou saidest turned out so as thou didst say.
Now, however, tell me how many in number are the remaining
Lacedemonians, and of them how many are like these in matters of war;
or are they so even all of them?" He said: "O king, the number of all
the Lacedemonians is great and their cities are many, but that which
thou desirest to learn, thou shalt know. There is in Lacedemon the
city of Sparta, having about eight thousand men; and these are all
equal to those who fought here: the other Lacedemonians are not equal
to these, but they are good men too." To this Xerxes said: "Demaratos,
in what manner shall we with least labour get the better of these men?
Come set forth to us this; for thou knowest the courses of their
counsels,[236] seeing that thou wert once their king." 235. He made
answer: "O king, if thou dost in very earnest take counsel with me, it
is right that I declare to thee the best thing. What if thou shouldest
send three hundred ships from thy fleet to attack the Laconian land?
Now there is lying near it an island named Kythera, about which
Chilon, who was a very wise man among us, said that it would be a
greater gain for the Spartans that it should be sunk under the sea
than that it should remain above it; for he always anticipated that
something would happen from it of such a kind as I am now setting