Jack explained his mission, and the officer, who had been dealing out the timely windfall of ammunition, nodded.

"Poor Hunter was shot early in the advance. It would have been victory to our flag if the poor old follow had been wounded before the action began. He lost three hours in the attack, and gave the rebels a chance to come up from Winchester."

Now Jack understood the mysterious legions that seemed to spring from the earth. They were Johnston's army from the Shenandoah.

"Keep up heart, men: Burnside and Schenck are near us somewhere. They are in reserve, and they'll give these devils a warm welcome, if they push far enough after us."

Then the steady volleys grew swifter, if that were possible, the enemy moving steadily after the slowly retiring group. But now there is a clear field to cross, so wide that the smallness of the force must be detected. The captain halts the line, takes his bearings, divides the little army into two bodies, orders one to move at a double-quick directly across the open; the rest are stretched out as skirmishers. He retires with the first squad across the field, directing the skirmishers to hold the ground until they hear three musket-shots from the wood behind. The rebels can now be seen closing in very near. But the skirmish-line, spreading over a wider front, evidently perplexes them, and they halt. The three shots are presently heard, then the skirmish-line flees in groups across the bare downs, the vociferating yells of the gray-coats fairly drowning the hideous clamor of the muskets.

"Ah! we're saved," a lieutenant cries, waving his cap like a madman. "Look! there are men in the wood yonder, to our right; they are coming this way!"

Jack turned, he was near the captain; and he marked, with deadly panic, a look of despair settle down on the heroic, handsome face. What could it mean? Didn't he believe that there were men there? Jack handed him his own glass—the captain had none.

"By Heaven, our flag! But what troops can they be in that quarter? They must be surrounded, like ourselves.—Sergeant, can you undertake a dangerous duty?"

"With all my heart," Jack cried, heartily.

"What's your name and company?"