The Persian detachment toiled all night up the steep and dangerous pathway, among rocks, chasms, and precipices, frightful by day, and now made still more frightful by the gloom of the night. They came out at last, in the dawn of the morning, into valleys and glens high up the declivity of the mountain, and in the immediate vicinity of the Phocaean encampment. The Persians were concealed, as they advanced, by the groves and thickets of stunted oaks which grew here, but the morning air was so calm and still, that the Phocaean sentinels heard the noise made by their trampling upon the leaves as they came up the glen. The Phocaeans immediately gave the alarm. Both parties were completely surprised. The Persians had not expected to find a foe at this elevation, and the Greeks who had ascended there had supposed that all beyond and above them was an impassable and trackless desolation. There was a short conflict, The Phocaeans were driven off their ground. They retreated up the mountain, and toward the southward. The Persians decided not to pursue them. On the other hand, they descended toward the defile, and took up a position on the lower declivities of the mountain, which enabled them to command the pass below; there they paused, and awaited Xerxes's orders. The Greeks in the defile perceived at once that they were now wholly at the mercy of their enemies. They might yet retreat, it is true, for the Persian detachment had not yet descended to intercept them; but, if they remained where they were, they would, in a few hours, be hemmed in by their foes; and even if they could resist, for a little time, the double onset which would then be made upon them, their supplies would be cut off, and there would be nothing before them but immediate starvation. They held hurried councils to determine what to do. There is some doubt as to what took place at these councils, though the prevailing testimony is, that Leonidas recommended that they should retire--that is, that all except himself and the three hundred Spartans should do so. "You," said he, addressing the other Greeks, "are at liberty, by your laws, to consider, in such cases as this, the question of expediency, and to withdraw from a position which you have taken, or stand and maintain it, according as you judge best. But by our laws, such a question, in such a case, is not to be entertained. Wherever we are posted, there we stand, come life or death, to the end. We have been sent here from Sparta to defend the pass of Thermopylae. We have received no orders to withdraw. Here, therefore, we must remain; and the Persians, if they go through the pass at all, must go through it over our graves. It is, therefore, your duty to retire. Our duty is here, and we will remain and do it."