The old mansion had also hidden protection for larger bodies than could be concealed under the recumbent lion by the fireplace. Up under the sloping roof, between the west wall of the garret and the tiles, was a long, narrow room, which was probably built at the order of Betty Van Lew, that she might have a safe shelter for Union refugees. All through the war gossip was rife concerning the Van Lews and their movements, and there were many rumors that the old mansion had a secret hiding-place, but this could never be proved. Besides those whom it sheltered from time to time, and the one whose thought had planned it, only one other person knew of the existence of that garret room, and for long years she was too frightened to tell what she had seen in an unexpected moment.
Betty Van Lew's niece was visiting in the old house during the blackest period of the struggle between the North and South. She was a little girl, and her bump of curiosity was well developed. After tossing restlessly in bed on a hot night, she opened her door in order to get some air. To her surprise she saw Aunt Betty tiptoeing through the other end of the dark hall, carrying something in her hand. With equal stealth the curious child followed the creeping figure up through the dark, silent house into the garret—saw a hand reach behind an old chest of drawers standing against the wall in the garret, and with utter amaze saw a black hole in the wall yawn before her eyes. There stood her aunt before the opening of the wall, shading with cautious hand the candle she carried, while facing her stood a gaunt, hollow-eyed, bearded man in uniform reaching out a greedy hand for the food on the plate. The man saw the child's eyes burning through the darkness back of the older woman, but she put a chubby finger on her lip, and ran away before he had a chance to realize that she was flesh and blood and not an apparition. Panting, she ran swiftly down the long staircase and, with her heart beating fast from fright, flung herself on the bed and buried her head in the pillows, lying there for a long time, so it seemed to her. Then, scarcely daring to breathe, for fear of being discovered, she stole out of bed again, opened her door, and once more crept up through the silent mansion, this time alone. In a moment she stood outside the place where the hole in the wall had opened before her amazed vision. Not a sound in the great, dark garret! Putting her mouth close to the partition she called softly to the soldier, and presently a deep voice told her how to press the spring and open the secret door. Then, a shivering but determined little white-robed figure, she stood before the yawning chasm and talked with the big, Union soldier, who seemed delighted at the sound of his own voice, and years afterward she remembered how he had looked as he said:
"My! what a spanking you would have got if your aunt had turned around!" She did not dare to stand there talking to him long, for she was old enough to realize that there must be a reason for his being in hiding, and that if the secret room should be discovered it might bring unhappiness to her aunt. So in a very few moments the little white-gowned figure flitted silently, swiftly down-stairs again, and no one knew until years later of that midnight excursion of hers—or of the secret room, for which the old house was thoroughly searched more than once.
The winter of 1863-4 was one full of tense situations and of many alarms for both Confederates and Unionists. In February, after the daring escape of the Federal officers from the Libby, there were several alarms, which roused young and old to the defense of the city. The enemy made a movement to attack the city on the east side, but were driven back. Again on the 29th of the month, the bells all rang to call men to service. The city battalions responded, while General Wilcox ordered all men who were in the city on furlough, and all who could bear arms, out to protect the city, for Kilpatrick was attempting a raid on Richmond, along Brook turnpike. "But while he was dreaming of taking Richmond, Gen. Wade Hampton suddenly appeared with his troops and routed him, taking three hundred and fifty prisoners, killing and wounding many, and capturing a large number of horses."
Then came an event for which the Federal sympathizers, and especially those in the Union Secret Service, had prepared with all the caution and secrecy possible, trying to perfect every detail to such a degree that failure would be impossible. To release all Federal prisoners in Richmond—this was but a part of the audacious scheme in which Betty Van Lew and a Union sympathizer called "Quaker," for purposes of disguise, played an important part.
On the 28th of February, 1864, Col. Ulric Dahlgren left Stevensburg with a company of men, selected from brigades and regiments, as a picked command to attempt a desperate undertaking. At Hanovertown he crossed with his men, all dressed in Confederate uniforms, confidently expecting to get into Richmond by stealth. Unfortunately their movements were discovered, and when they rode along through the woods near the road at Old Church, in their disguise, a party of Confederates in ambush opened fire on them, captured ninety white men and thirty-five negroes, and killed poor little crippled Dahlgren, a small, pale young officer, who "rode with crutches strapped to his saddle, and with an artificial leg in the stirrup, as he had lost a limb a few months before. His death was as patriotic as was his desperate attempt, for bravely his eager band rode into the ambush—there was a volley of shots from the thicket by the roadside, and the young colonel fell from his horse, dead. Some of his men managed to escape, but most of them were captured."
In Dahlgren's pocket was found an order to all of his men and officers. To the officers he said:
"We will have a desperate fight, but stand up to it. When it does come, all will be well. We hope to release the prisoners from Belle Isle first, and having seen them fairly well started, we will cross James River into Richmond, destroying the bridges after us, and exhorting the released prisoners to destroy and burn the hateful city, and do not allow the rebel leader Davis and his traitorous crew to escape."