"So it is, there's the flash of the stream, the color of steel, and by all the stars, there's their bridge two-thirds of the way across!"

Heavier puffs of wind came and the fog billowed off down the river. The whole gigantic theater of action sprang at once into the light. There were the two great armies clustered on opposing ridges, there was the deserted town, there was the deep river, the color of lead, flowing between the foes, two-thirds of its width already spanned by the Union bridge, the bridge itself covered with workmen, and boats swarming by its side.

Harry felt a thrill and a shudder which were almost simultaneous. Then came a deep muffled roar from the two armies on the ridges looking at each other. But as the roar died it was succeeded by the rapid, stinging fire of rifles. The Mississippians in their pits and cellars near the bank of the river were sending a hail of bullets upon the bridge builders.

The rest of the Southern army stood by and watched. Harry knew that Lee and Jackson would make their chief defense on the ridges, but the Mississippians were there to keep the enemy from being too forward. So deadly were their rifles that every workman fled off the bridge to the Union shore, save those who were struck down upon it, falling into the water.

Then came a pause, a period of intense waiting, short, but seemingly long, even to the veteran generals, after which the gallant builders, who truly deserved the name of the bravest of the brave, ventured again upon the bridge in the face of those terrible Mississippi rifles. A blast of death again blew upon them. Bullets in hundreds struck upon bodies or rattled on timbers. The workmen could not live in the face of such a fire, and those who had not been slain retreated again to their own side of the stream. A third time the heroic bridge builders returned to their work, and a third time they were driven back by the deadly Mississippi hail. Harry felt pity for them.

"I never saw anything braver," he said to Dalton.

"Nor did I, Harry, nor anything more useless. The bridge builders never had a chance before the rifles. But now their supports, which should have been there all the time, are coming up."

Heavy columns of Union riflemen moved forward to the edge of the river and replied to the Mississippians. But the Southerners, in the shelter of the cellars and pits, held their ground. But few of them were hit and they kept up that deadly hail which swept the uncompleted bridge clear of every workman who attempted to go upon it.

The rapid fire of the rifles crashed up and down both sides of the river, two sheets of flame seeming to reach out as if they would meet each other. The wind that had driven away the fog also carried off the smoke, and the river still gleamed like steel between. Then, as the rifle fire died again, there was another silence for a while.

"It will take more than rifles," said Harry, "to drive out those intrenched Mississippians."