On leaving Sardis a frightful spectacle was provided by Xerxes: the army found itself marching between two halves of a slaughtered man. Pythius, an old Phrygian of great riches, had entertained Xerxes with much hospitality, and offered him all his wealth, amounting to two thousand talents of silver and nearly four million darics of gold. This generous offer Xerxes declined, and gave Pythius enough gold to make up his darics to an even four millions. Then, when the army was about to march, the old man told Xerxes that he had five sons in the army, and begged that one of them, the eldest, might be left with him as a stay to his declining years. Instantly the despot burst into a rage. The request of exemption from military service was in Persia an unpardonable offence. The hospitality of Pythius was forgotten, and Xerxes ordered that his son should be slain, and half the body hung on each side of the army, probably as a salutary warning to all who should have the temerity to question the despot's arbitrary will. On marched the great army. It crossed the plain of Troy, and here Xerxes offered libations in honor of the heroes of the Trojan war, the story of which was told him. Reaching the Hellespont, he had a marble throne erected, from which to view the passage of his troops. The bridges--which the scourged and branded waters had now spared--were perfumed with frankincense and strewed with myrtle boughs, and, as the march began, Xerxes offered prayers to the sun, and made libations to the sea with a golden censer, which he then flung into the water, together with a golden bowl and a Persian scimitar, perhaps to repay the Hellespont for the stripes he had inflicted upon it. At the first moment of sunrise the passage began, the troops marching across one bridge, the baggage and attendants crossing the other. All day the march continued, and all night long, the whip being used to accelerate the troops; yet so vast was the host that for seven days and nights, without cessation, the army moved on, and a week was at its end before the last man of the great Persian host set foot on European soil. Then down through the Grecian peninsula Xerxes marched, doubtless inflated with pride at the greatness of his host and the might of the fleet which sailed down the neighboring seas and through the canal which he had cut to baffle stormy Athos. One regret alone seemed to come into his mind, and that was that in a hundred years not one man of that vast army would be alive. It did not occur to him that in less than one year few of them might be alive, for all thought of any peril to his army and fleet from the insignificant numbers of the Greeks must have been dismissed with scorn from his mind.