At last, perceiving that he was wasting his strength to no purpose, he changed his method of attack, and leaving his car in charge of a squire prepared to lead the assault on foot. Some time was lost while he was collecting a picked body of men to follow him, and instructing them how to proceed; and while he was taking his measures, Asius, a captain of the allies, made a bold attempt to carry the Greek position at a single blow. Disregarding Hector's orders, he remained in his chariot, called to his troop to keep close behind him, and drove rapidly round the line of the wall, looking for a weak point where he might hope to force an entrance. He succeeded beyond his hopes; for on the extreme left of the camp he found a gate which was still open to admit any stragglers who might have been left behind in the flight of the Greeks. With a shout of triumph he drove straight at the open gateway, with all his company following pell-mell. But just as he was about to cross the portals he found himself confronted by a pair of gigantic brothers, who stood like two mighty oaks deep-rooted on a mountain top, ready to dispute the way. They were well supported by the defenders who lined the walls, and a hail of stones and javelins rattled down on the shields of Asius and his men, who were driven back with loss and compelled to retire out of range. The gates were then closed and barred, and for this time the camp was saved. Meanwhile the Trojans under Hector's command were still hesitating on the brink of the moat. For a strange portent had occurred, which gave them pause, just as they were rushing to the assault. On the left hand of the army they saw an eagle soaring high in the air, holding a huge serpent in his talons, which writhed and struggled to escape. And indeed the eagle had met his match, for suddenly the serpent drew back his head, and darting forward bit his captor in the breast. The eagle gave a scream of pain, and dropping the serpent, which fell in the midst of the Trojans, flew swiftly away. The Attack on the Grecian Camp The Greeks were now driven back upon their defences, and a furious struggle ensued for the possession of the walls. The battle was no longer a succession of duels, such as we have witnessed hitherto, but a desperate contest for life and death, in which high and low, nobles and commons, had to take their share. As before, Hector took the lead, and tried to force his way across the moat, and up the steep slope on the other side, which was topped by a wall of stone, and a stiff fence of palisades. Again and again he rushed at the yawning moat in his car, but each time his horses refused the leap, and stood neighing and trembling, with their hoofs planted at the brink.