With such information the growlers ceased their complaints and there was a common hope that the enemy would not escape.
"'Tis only put off one day," said Dennis. "We'll either drive the Johnnies into the Potomac or carry them with us back to Washington."
The following day the men were aroused at three o'clock in the morning. There was no haste in the orders or in the movements of the men. They ate their breakfast and drank their coffee, and then all made ready for battle. But again the hours passed and there was no decisive action. At eight o'clock it was learned that the Confederates had slipped away and had withdrawn across the Potomac, and doubtless by this time were safely in Virginia.
The river into which the Union soldiers had believed they would drive their enemies had now become the best defense of Lee's army. The battles of South Mountain and Antietam were robbed of any decisive significance. It is true that Lee's advance into the North was blocked, and that he was compelled to turn back to defend the rebel capital, but he had shown his skill by successfully evading his foes and at the same time protecting his army as he withdrew.
The following day was Sunday. All signs of storms had passed, and not since the Union army had departed from Washington had finer marching weather been seen.
The sound of distant cannonading once more revived the hope that General McClellan would follow the retiring Confederates and that another battle would soon be fought. The roar of the great guns, however, was merely a harmless artillery duel across the river.
The hours of the long day dragged on and still the men were not ordered to advance. The lack of action was beginning to tell strongly upon their spirits and there were many complaints to be heard now on every side over the meaningless, or at least the misunderstood, delay.
It was eleven o'clock at night before it was reported that orders had been received for the corps to advance to Harper's Ferry the following day. But the following day came and went, and in turn was followed by other days until a month had passed and the advance still was postponed. The battle-field was still the scene of the camp, and it was only after some time had elapsed that the soldiers understood that they had been left to help guard the Potomac so that General Lee might not attempt to cross it again and try another battle.
The terrible excitement and fatigue, the privations and the continued strain upon the nerves and feelings of the men were followed now by a calm and monotony that was most deadly. Once a week each soldier was on guard, taking his turn as a sentinel. Part of each day was given to drill. At sunset there was a brief parade, but the rest of the day was largely his own.
Because of such conditions the soldiers were exposed to many temptations, and in spite of the sorrow which followed the battle of Antietam there were many pranks being played.