The battle blazed up with a suddenness and violence that astonished Harry. The air was filled in an instant with the whistling of shells and bullets. He heard many cries. Men were falling all around him, but so far he and Dalton were untouched. Heth, Davis, Archer and the others were pushing on their troops, shouting encouragement to them, and occasionally, through the clouds of smoke, which were thickening fast, Harry saw the tanned faces of their enemies loading and firing as fast as they could handle rifle and cannon. The Northern men had shelter, but were fewer in number. The soldiers in gray were suffering the heavier losses, but they continued to advance. The battle swelled in volume and fierceness along the banks of Willoughby Run. There was a continuous roar of rifles and cannon, and the still, heavy air of the morning conducted the sound to the divisions that were coming up and to the trembling inhabitants of the little town who had fled for refuge to the farmhouses in the valley. Harry and George had still managed to keep close together. Both had been grazed by bullets, but these were only trifles. They saw that the division was not making much progress. The men in blue were holding their ground with extraordinary stubbornness. Although the Southern fire, coming closer, had grown much more deadly, they refused to yield. Buford, who had chosen that battlefield and who was the first to command upon it, would not let his men give way. His great hour had come, and he may have known it. Watching through his glasses he had seen long lines of Southern troops upon the hills, marching toward Gettysburg. He knew that they were the corps of Hill, drawn by the thunder of the battle, and he felt that if he could hold his ground yet a while longer help for him too would come, drawn in the same manner. Harry once caught sight of this officer, a native of Kentucky like himself. He was covered with dust and perspiration, but he ran up and down, encouraging his men and often aiming the cannon himself. It was good fortune for the North that he was there that day. The Southern generals, uncertain whether to push the battle hard or wait for Lee, recoiled a little before his tremendous resistance. But the South hesitated only for a moment. Hill, pale from an illness, but always full of fire and resolution, was hurrying forward his massive columns, their eagerness growing as the sound of the battle swelled. They would overwhelm the Union force, sweep it away. Yet the time gained by Buford had a value beyond all measurements. The crash of the battle had been heard by Union troops, too, and Reynolds, one of the ablest Union generals, was leading a great column at the utmost speed to the relief of the general who had held his ground so well. A signalman stationed in the belfry of the seminary reported to Buford the advance of Reynolds, and the officer, eager to verify it, rushed up into the belfry.