But as the Americans marched on, they encountered constantly increasing opposition. Several of the soldiers had been wounded by the time they had reached the thick of the disturbance. When they turned a corner into one of the main streets of the town they found that a barricade had been erected across it, and this barricade was being held by a small force of Americans, who, hemmed in on every side by Germans, were finding it a hard task to hold out against tremendously heavy odds. But the advent of reinforcements turned the tide of battle for the time being, and the mob quickly took to its heels and left the Americans a brief breathing space. The new arrivals were welcomed lustily, and soon found themselves within the barricades, where they commenced a brisk fire against their unseen enemies on roof and at window, who still kept up a scattering fire. Meanwhile, the leaders held a brief consultation to decide their immediate course of action. It was decided to dispatch small bodies of men, as many as could be spared, to clean up the adjacent streets, and so prevent the rioters from massing again. The four Army Boys, together with twelve of their company, two squads in all, found themselves detailed to a narrow street, and they soon found that their task was going to prove no sinecure. The street was very narrow, bordered by tall, peaked houses, and every house seemed to shelter two or three riflemen. It was only occasionally that the Americans could see their opponents, but when a German did venture to expose himself for a moment, his slip almost invariably proved fatal, as the American rifles spoke with deadly effect. But the Americans were at a terrible disadvantage, and the sergeant in charge saw this and acted accordingly. "Break up into groups," he ordered, "part on one side of the street and part on the other, and go from house to house. Clean them out thoroughly, and show no mercy to anybody you find with a rifle in his hand. We'll assemble again at the end of this street." This plan was put into immediate operation. The four Army Boys were together. With their rifle butts they battered in the doors of houses, then fought their way up to the roofs against the most treacherous opposition. Again and again one or the other escaped death by what seemed a miracle, and they saw to it that the Huns paid the price for these attacks. The second house that they entered was a large one, and seemed a veritable maze of rooms, for each one of which they had to fight to gain possession. As they reached the foot of the stairway leading up to the top story, they saw three burly Germans at the top, rifles in hand, evidently prepared to stop the hated Americans at any cost. "Surrender!" shouted Frank. For answer, one of the Germans, who appeared to be the leader, leveled his rifle at Frank's head, but before he could pull the trigger, Bart's big automatic pistol spoke once, and the German swayed, stumbled, and came crashing down the staircase.