Harry heard the fire of Jackson slackening behind him, and he knew it was because Meade had been stopped or was retreating, and he stayed a little with the brigadier to see how Longstreet received the enemy. The hill and all the ridges about it seemed to be in one red blaze, and every few minutes the triumphant rebel yell, something like the Indian war-whoop, but poured from thirty thousand throats, swelled above the roar of the cannon and the crash of the rifles and made Harry's pulses beat so hard that he felt absolute physical pain. He hurried to Jackson, where the battle, which had died for a little space, was swelling again. As the Pennsylvanians were compelled to draw back, leaving the ground covered with their dead, the Union batteries on Stafford Heights reopened, firing again over the heads of the men in blue. The Southern batteries, weaker and less numerous, replied with all their energy. A far-flung shot from their greatest gun, at the extreme southern end of the line, killed the brave Union general, Bayard, as he was sitting under a tree watching his troops. Gregg, one of the best of the Southern generals, was mortally wounded. A great body of the Pennsylvanians, charging again, reached the shelter of the woods and burst through the Southern line. At another point, Hancock, always cool and brilliant on the field of battle, rallied shattered brigades and led them forward in person to new attacks. Hooker, who had shown such courage at Antietam, equally brave on this occasion, rushed forward with his men at another point. Franklin, Sumner, Doubleday and many other of the best Union generals showed themselves reckless of death, cheering on their men, galloping up and down the lines when they were mounted, and waving their swords aloft after their horses were killed, but always leading. The Pennsylvanians who had cut into the Southern line were attacked in flank, but they held on to their positions. Jackson did not yet know of Meade's success. He still stood on Prospect Hill with his staff, which Harry had rejoined. The forest and vast clouds of smoke hid from his view the battle, save in his front. Harry saw a messenger coming at a gallop toward the summit of the hill, and he knew by his pale face and bloodshot eyes that he brought bad news. Jackson turned toward the messenger, expectant but calm. "What is it?" he asked. "The enemy have broken through General Archer's division, and he directed me to say to you that unless help is sent, both his position and that of General Gregg will be lost." Jackson showed no excitement. His calm and composure in the face of disaster always inspired his men with fresh courage. "Ride back to General Archer," he said, "and tell him that the division of Early and the Stonewall Brigade are coming at once."