Just as the hand of the clock reached ten there was a report from a gun. It came from the extreme left, miles away. General Garfield stepped quickly to the door, and listened. There was another gun, and another, and fifty more, swelling to a roar. Turning to Rosecrans, Garfield said: “It has begun.” To which the commander replied: “Then, God help us.” Heavier and heavier became the roar. The engagement on the left was evidently becoming heavier. A quarter of an hour later messengers began to arrive. The enemy was endeavoring to turn the left-flank, but was being repulsed with heavy loss. A few moments later came the word that the enemy had captured ten pieces of artillery. The order had been given for one division of the troops to fall back. It was obeyed. But the artillerymen had been unable to move the guns back in time. The heavy undergrowth in the forest, the fallen and rotting logs, had made it slow work to drag back the ponderous cannon. The red-shirted cannoneers were still bravely working to move their battery to the rear after the line had fallen back from them a long distance. Suddenly, with a fierce yell, the rebel column poured in upon them. Guns and gunners were captured. At 11:30 came a call from General Thomas for reinforcements. General Garfield swiftly wrote an order for divisions in the center to march to the left and reinforce General Thomas. Another courier was dispatched to the right, ordering troops to take the place of those removed from the center. At half-past twelve these movements were completed. So far, the only attack had been on the left, though the tide of battle was rolling slowly down the line. General Rosecrans and General Garfield held an earnest consultation. It was decided to order an advance on the right center, in order to prevent the enemy from concentrating his whole army against our left wing.