The men were fairly safe. Their muskets taught most of the enemy to keep down behind the parapet. The rest of the Mexicans fired very badly, and the Americans near the wall could not be reached by the cannon. But the attack was making no progress. Time passed--five, ten, fifteen dreadful minutes, and still no ladders could even be seen. The American batteries, which had been firing over the heads of our troops, could no longer do it safely. The ardor of battle was cooling. Low mounds that looked like graves, but in reality were the mines, lay under our men, and a Mexican lieutenant of engineers had orders to fire them at the right moment. Santa Anna with perhaps 4000 or even 5000 reserves so near--might he not come round the hill? Scott's whole gazing army, back even to Lieutenant Mayne Reid at Battery No. 2, was seized with a horrible fear. Pillow, lying at the foot of the hill painfully hurt in the ankle, sent for the whole of Worth's division, which was supporting him as a reserve, and begged Worth to make "great haste" or it would be "too late."[28.17] There was, however, a nearer source of help. When the signal for attack was given, Quitman's division--preceded by forty pioneers under Captain Reynolds of the Marines, Casey's forlorn hope, and 120 stormers from the volunteer division led by Major Twiggs of the Marines--advanced on the Tacubaya causeway until about 200 yards from the gateway batteries. To support it, repel a body of Mexicans on its right, ward off any force that might approach from the city, perhaps turn those batteries, and if possible gain the Mexican rear, General Smith struck off into the meadows and pushed on despite the ditches; and Captain Drum and Lieutenant Benjamin, each with a single gun, and Lieutenant Hunt with two of Duncan's pieces advanced by the road, firing on those batteries or at the hill and fort as opportunities offered.[28.17] On each side of the causeway ran a ditch that was almost a canal and cramped the troops not a little; and a terrible fire of artillery and musketry from the meadows, the front, the wall of the rectangle and the fort on the hill-top greeted them. Quitman had reconnoitred here the day before, and thought he understood the problem; but the Mexicans had made further preparations afterwards, and when he ordered a charge, it was checked, and Twiggs and Casey fell. Ahead of him, partly enfilading the road, blazed at least five guns, and some of the best soldiers in the Mexican army--commanded by General Rangel--occupied the stone buildings near them, while others fired from behind the wall near the gateway. Under this concentrated and awful storm the Americans recoiled, and sheltered themselves near a bend in the road by lying down, getting into the ditches or occupying some houses. Here, too, the offensive was blocked; the attack failed.[28.17]