"Their cannon fire is sinking!" exclaimed Colonel Talbot. "In a minute it will cease and then will come the charge! 'Tis Carrington's way, and a good way! Hark! Listen to it! The signal! Ready, men! Ready! Here they come!" The great cannonade ceased so abruptly that for a few moments the stillness was more awful than the thunder of the guns had been. The recruits could hear the great pulses in their temples throbbing. Then the silence was pierced by the shrill notes of a brazen bugle, steadily rising higher and always calling insistently to the men to come. Then they heard the heavy thud of many men advancing with swiftness and regularity. The Southern troops were at the earthworks in double rows, and the gunners were at the guns, all eager, all watching intently for what might come out of the smoke. But the rising breeze suddenly caught the great bank of mists and vapors and whirled the whole aside. Then Harry saw. He saw a long line of men, their front bristling with the blue steel of bayonets, and behind them other lines and yet other lines. It seemed to Harry that the points of the bayonets were almost in his face, and then, at the shouted command, the whole earthwork burst into a blaze. The cannon and hundreds of rifles sent their deadly volleys into the blue masses at short range. The fort had turned into a volcano, pouring forth a rain of fire and deadly missiles. The front line of the Northern force was shot away, but the next line took its place and rushed at the fort with those behind pressing close after them. The defenders loaded and fired as fast as they could and the high walls of earth helped them. The loose dirt gave away as the Northern men attempted to climb them, and dirt and men fell together back to the bottom. The Northern gunners in the rear of the attack could not fire for fear of hitting their own troops, but the Southern cannon at the embrasures had a clear target. Shot and shell crashed into the Northern ranks, and the deadly hail of bullets beat upon them without ceasing. But still they came. "The mechanics and mill hands are as good as anybody, it appears!" shouted St. Clair in Harry's ear, and Harry nodded. But the defenses of the fort were too strong. The charge, driven home with reckless courage, beat in vain upon those high earthen walls, behind which the defenders, standing upon narrow platforms, sent showers of bullets into ranks so close that few could miss. The assailants broke at last and once more the shrill notes of the brazen bugle pierced the air. But instead of saying come, it said: "Fall back! Fall back!" and the great clouds of smoke that had protected the Northern advance now covered the Northern retreat.