Xerxes now had recourse to a somewhat clumsy, though a very commonly practised artifice. Twenty thousand of his men had fallen at Thermopylae: of these he buried nineteen thousand, and leaving the remainder uninterred, he invited all who desired it, by public proclamation, to examine the scene of contest. As a considerable number of helots had joined their Spartan lords and perished with them, the bodies of the slain amounted to four thousand [75], while those of the Persians were only one thousand. This was a practical despotic bulletin. V. Of all the neighbouring district, the Phocians had alone remained faithful to the Grecian cause: their territory was now overrun by the Persians, at the instance of their hereditary enemies, the Thessalians, destroying city and temple, and committing all the horrors of violence and rapine by the way. Arrived at Panopeae, the bulk of the barbarian army marched through Boeotia towards Athens, the great object of revenge, while a separate detachment was sent to Delphi, with a view of plundering the prodigious riches accumulated in that celebrated temple, and of which, not perhaps uncharacteristically, Xerxes was said to be better informed than of the treasures he had left behind in his own palace. But the wise and crafty priesthood of Delphi had been too long accustomed successfully to deceive mankind to lose hope or self-possession at the approach even of so formidable a foe. When the dismayed citizens of Delphi ran to the oracle, demanding advice and wishing to know what should be done with the sacred treasures, the priestess gravely replied that "the god could take care of his own possessions, and that the only business of the citizens was to provide for themselves;" a priestly answer, importing that the god considered his possessions, and not the flock, were the treasure. The one was sure to be defended by a divinity, the other might shift for themselves. The citizens were not slow in adopting the advice; they immediately removed their wives and children into Achaia--while the males and adults fled--some to Amphissa, some amid the craggy recesses of Parnassus, or into that vast and spacious cavern at the base of Mount Corycus, dedicated to the Muses, and imparting to those lovely deities the poetical epithet of Corycides. Sixty men, with the chief priest, were alone left to protect the sacred city.