Profound silence reigned all around; only from time to time a rustling noise was heard in the shrubbery; the flashing barrel of a rifle was then seen, and it seemed as though the fleet-footed chamois appeared on the heights above. But they were Tyrolese sharpshooters who had climbed up to the watch-towers of their natural fortresses to espy the enemy and on his appearance to welcome him with the bullets of their rifles. Profound silence reigned all around, and the two men were still standing, hatchet in hand, by the side of the ropes holding the artificial avalanches. All at once a loud, shrill whistle resounded in front of the entrance to the defile; it was repeated all around the gloomy gorge. "That is the signal that the enemy has passed the inn am Sack and is entering the defile of the Eisach," murmured Zoppel, examining once more the edge of his hatchet with his hand. Then he looked down attentively into the depth, where only a footpath meandered close along the bank of the foaming Eisach. A few soldiers were now seen entering the defile yonder, where the road projected between two jutting rocks forming the background of the gorge. The form of a Tyrolese sharpshooter appeared at the same moment on the top of the precipitous rock. He stepped close to the edge of the rock, allowed the soldiers, who looked around slowly and distrustfully, to advance a few steps, and then raised his rifle. He fired; one of the soldiers fell immediately to the ground, and the Tyrolese sharpshooter reloaded his rifle. He fired again, and laid another soldier prostrate. The two reports had accelerated the march of the enemy. The soldiers entered the defile with a hasty step; in order to advance, they had to remove the two soldiers who were writhing in the agony of death and obstructing the narrow path, and throw them into the waters of the Eisach, which received with a wild roar the two corpses, the first victims of the reopening struggle. Meanwhile the Tyrolese sharpshooter on the height above had reloaded his rifle and shot another soldier. On seeing this, he uttered a loud Jodler, made a leap of joy, and nodded laughingly to the enemy, who cast threatening glances on him. But he did not see that one of the officers below called four soldiers to him, pointed his hand at the top of the rock, and gave them a quick order. The four soldiers sprang at once from the ranks and disappeared in the shrubbery covering the base of the rock.