On September 29, Mosby was back with his command; his wound had not been as serious as it might have been for the bullet had expended most of its force against the butt of one of the revolvers in his belt. Operations against the railroads had been allowed to slacken during Mosby's absence; now they were stepped up again. Track was repeatedly torn up along the Manassas Gap line, and there were attacks on camps and strong points, and continual harassing of wood-cutting parties obtaining fuel for the locomotives. The artillery was taken out, and trains were shelled. All this, of course, occasioned a fresh wave of Union raids into the home territory of the raiders, during one of which Yank Ames, who had risen to a lieutenancy in the Forty-Third, was killed. The most desperate efforts were being made, at this time, to keep the Manassas Gap Railroad open, and General C. C. Augur, who had charge of the railroad line at the time, was arresting citizens indiscriminately and forcing them to ride on the trains as hostages. Mosby obtained authorization from Lee's headquarters to use reprisal measures on officers and train crews of trains on which citizens were being forced to ride, and also authority to execute prisoners from Custer's command in equal number to the men hanged at Front Royal and elsewhere. It was not until November that he was able to secure prisoners from Custer's brigade, it being his intention to limit his retaliation to men from units actually involved in the hangings. On November 6, he paraded about twenty-five such prisoners and forced them to draw lots, selecting, in this manner, seven of them--one for each of the men hanged at Front Royal and another for a man named Willis who had been hanged at Gaines' Cross Roads several weeks later. It was decided that they should be taken into the Shenandoah Valley and hanged beside the Valley Pike, where their bodies could serve as an object lesson. On the way, one of them escaped. Four were hanged, and then, running out of rope, they prepared to shoot the other two. One of these got away during a delay caused by defective percussion caps on his executioner's revolver. A sign was placed over the bodies, setting forth the reason for their execution, and Mosby also sent one of his men under a flag of truce to Sheridan's headquarters, with a statement of what had been done and why, re-enforced with the intimation that he had more prisoners, including a number of officers, in case his messenger failed to return safely. Sheridan replied by disclaiming knowledge of the Front Royal hangings, agreeing that Mosby was justified in taking reprisals, and assuring the Confederate leader that hereafter his men would be given proper treatment as prisoners of war. There was no repetition of the hangings.