This unexpected summons found Grant in a serious condition, for some weeks earlier his horse had fallen under him, crushing his leg so severely that for a time it was feared he might be crippled for life, and he was still on crutches suffering intense pain when the exciting orders were placed in his hands. Nevertheless, he promptly started on his desperate errand, traveling at first by rail and steamer and then in an ambulance, until its jolting motion became unbearable when he had himself lifted into the saddle with the grim determination of riding the remainder of the way. Even for a man in perfect physical condition the journey would have been distressing, for the roads, poor at their best, were knee deep in mud and a wild storm of wind and rain was raging. Time and again his escort had to lift the General from his horse and carry him across dangerous washouts and unaffordable streams, but at the earliest possible moment they were always ordered to swing him into the saddle again. Thus, mile after mile and hour after hour, the little cavalcade crept toward Chattanooga, Grant's face becoming more haggard and furrowed with pain at every step, but showing a fixed determination to reach his goal at any cost. On every side signs of the desperate plight of the besieged garrison were only too apparent. Thousands of carcasses of starved horses and mules lay beside the road amid broken-down wagons, abandoned provisions and all the wreckage of a disorganized and demoralized army. But if the suffering officer noted these ominous evidences of disaster, his face afforded no expression of his thought. Plastered with mud and drenched to the skin, he rode steadily forward, speaking no word and scarcely glancing to the right or left, and when at last the excruciating journey came to an end, he hastened to interview Thomas and hear his report, without even waiting to change his clothes or obtain refreshment of any kind. It was not a very cheerful story which Thomas confided to his Chief before the blazing headquarters' fire, but the dripping and exhausted General listened to it with no indication of discouragement or dismay. "What efforts have been made to open up other roads for provisioning the army?" was the first question, and Thomas showed him a plan which he and Rosecrans had worked out. Grant considered it in silence for a moment and then nodded his approval. The only thing wrong with the plan was that it had not been carried out, was his comment, and after a personal inspection of the lines he gave the necessary authority for putting it into immediate operation. Orders accordingly began flying right and left, and within twenty-four hours the army was busily engaged in gnawing a way out of the trap.