And Celia turned with a cry and stood swaying there in the rays of the candle.

But it was only a Sister of Charity—a slim, childish figure under the wide white head-dress—who had halted, startled at Celia's cry. She was looking for the Division Medical Director, and the sentries had misinformed her—and she was very sorry, very deeply distressed to have frightened anybody—but the case was urgent—a Sister shot near the picket line on Monday; and authority to send her North was, what she had come to seek. Because the Sister had lost her mind completely, had gone insane, and no longer knew them, knew nobody, not even herself, nor the hospital, nor the doctors, nor even that she lay on a battle-field. And she was saying strange and dreadful things about herself and about people nobody had ever heard of. . . . Could anybody tell her where the Division Medical Director could be found?

It was not yet daybreak when Berkley awoke in his bed to find lights in the room and medical officers passing swiftly hither and thither, the red flames from their candles blowing smokily in the breezy doorways.

The picket firing along the river had not ceased. At the same instant he felt the concussion of heavy guns shaking his bed. The lawn outside the drawn curtains resounded with the hurrying clatter of waggons, the noise of pick and spade and crack of hammer and mallet.

He drew himself to a sitting posture. A regimental surgeon passing through the room glanced at him humorously, saying: "You've got a pretty snug berth here, son. How does it feel to sleep in a real bed?" And, extinguishing his candle, he went away through the door without waiting for any answer.

Berkley turned toward the window, striving to reach the drawn curtains. And at length he managed to part them, but it was all dark outside. Yet the grounds were evidently crowded with waggons and men; he recognised sounds which indicated that tents were being erected, drains and sinks dug; the rattle of planks and boards were significant of preparation for the construction of "shebangs."

Farther away on the dark highway he could hear the swift gallop of cavalry and the thudding clank of light batteries, all passing in perfect darkness. Then, leaning closer to the sill, he gazed between the curtains far into the southwest; and saw the tall curve of Confederate shells traced in whirling fire far down the river, the awful glare of light as the enormous guns on the Union warships replied.

Celia, her lovely hair over her shoulders, a scarf covering her night-dress, came in carrying a lighted candle; and instantly a voice from outside the window bade her extinguish the light or draw the curtain.

She looked at Berkley in a startled manner, blew out the flame, and came around between his bed and the window, drawing the curtains entirely aside.

"General Claymore's staff has filled eve'y room in the house except yours and mine," she said in her gentle, bewildered way. "There's a regiment—Curt's Zouaves—encamped befo' the west quarters, and a battery across the drive, and all the garden is full of their horses and caissons."