Somers, when he discovered that the major had escaped him, was afraid to trust himself in the family chaise, which would too surely betray his movements to a pursuing force, if the traitor could find one in the vicinity. He decided that it would be safer for him to walk, and then he could avoid the public road if it became necessary for him to do so. Though he would have been glad to hand the treacherous scoundrel over to the military authorities for punishment as a deserter, or for giving aid and comfort to the enemy, he would have been a great encumbrance to him on the road. As events often happen for the best, he consoled himself with the belief that the traitor’s escape was not the worst thing that could have occurred.

He walked rapidly till he obtained his horse. Whatever his late friends had done to secure his capture, he was not molested on the road, nor did he discover any pursuers behind him. His horse was fresh, after the long rest he had had, and Somers rode at a break-neck gait till he reached the headquarters of the general. On the way, after he had carefully arranged in his mind the information he had obtained, he could not help thinking over the exciting events of the afternoon. Major Riggleston’s conduct was very strange. On the preceding day he had been a loyal soldier; now he was apparently in full sympathy with the rebels. It was a sudden change, if it was a change at all.

But the major, like a lobster, had a lady in his head, and it was quite impossible to tell what a major or a lobster would do, with a lady in his head. Somers had met the beauty at the house of Mr. Riggleston, in Frederick. They had ridden over to her home that morning in the chaise; and the best solution which he could give of the matter was, that Maud had converted him from one side to the other. As this seemed to be a satisfactory explanation of the singular conduct of the fighting man, he was satisfied with it, and gave the subject no further consideration.

His ride was not so long as it had been in the morning, for the army had advanced some miles; and at sunset Somers reported his information to the general. He also told his story about the attempt which had been made to capture him, and in the course of his narrative involved the loyal major of the Maryland Home Brigade in trouble and dishonor. The general was not a little amused at the story, and hoped other officers, who were invited to dinner by fair rebel ladies, and then entrapped, would resort to similar strategy. But the information which Somers brought was the most interesting and valuable part of the proceeds of his trip, and the general was soon busy in the study of his maps in the new light he had obtained.

The next day was Sunday; but it was not the quiet sabbath of the soul that rests the body, and renews the spirit’s waning hope; it was a day of storm and battle—a day of death and destruction. Somers performed his first staff duty in the field on this occasion. During the forenoon the artillery thundered along the range of the South Mountain. The enemy was posted on the steeps, and all along the side of the mountain, on both sides of the Cumberland road, which is the direct route to the Upper Potomac. Beyond the hills were the wagon and ammunition trains of the rebels, as well as the more considerable portion of their army. The possession of this road was necessary to their safety, as well as to the success of their grand scheme of carrying on a war of invasion.

The battle was opened by the corps of General Reno, next to which in the line of march was the first army corps. During the early part of the day, the action was fought with artillery, and was an attempt to dislodge the enemy from the strong position they had taken. The slope of the mountain was rugged, consisting of irregular ledges, and the whole covered with wood, which grew out of the interstices of the rocks, and on the shelves where there was earth enough to give life to a tree. In these woods and among these rocks the rebels were located,—infantry and sharpshooters,—while their cannon were placed in such positions that they commanded all the approaches to the Gap, through which the road passed.

An attack of infantry was ordered, and the gallant fellows went forward with alacrity to execute the command. They rushed boldly up the steeps, to a stone wall behind which the main line of the enemy rested, driving the skirmishers before them. Torrents of blood flowed, and moistened the soil where hundreds of brave fellows gave up their lives; but they won the ground, and held it. The rebels fought with desperation, and their generals rallied them in vain to do what could not be done.

Partial successes and partial reverses occurred in different parts of the line until noon, when the artillery alone was actively engaged. The day was not yet won, and hundreds more were to fall on the field before the obstinate foe would yield the position.

At two o’clock in the afternoon the head of the first army corps appeared, which had been ordered forward by General McClellan to the support of Reno’s hard-pressed forces. As “Fighting Joe” appeared before the lines, the utmost enthusiasm was manifested by the troops. They cheered him as though he had already saved the day. The general was examining the ground. His quick eye had already grasped the situation. He had been ordered by the general commanding to make a feint in favor of Burnside’s forces; but, satisfied that an attack on the south side of the road would not be a success, he turned his attention to that portion of the rebel line at the north of the road, which had been reported upon by Captain Somers.

The general proceeded, as he always did, directly to the front. He seemed to know precisely what he was about, and to have all his force entirely in hand. Then he began to send off his orders, and the members of his staff were dashing about in every direction, till the line was formed. Batteries were posted behind the troops, and the shot and shell whizzed through the air over the soldiers’ heads. The order to advance was given; the line moved up the precipitous steeps, and for half an hour the battle raged with tremendous fury.