"Aye, aye, sir," said Harry. "It's sufficient for us to follow where General Lee leads." "But we need a great victory," said Colonel Talbot. "We've had news from the southwest. The enemy has penetrated too far there. That fellow Grant is a perfect bulldog. They say he actually means to take our fortress of Vicksburg. He always hangs on, and that's bad for us. If we win this war, we've got to win it with some great stroke here in the east." "You speak with your usual penetration and clearness, Leonidas," said Lieutenant-Colonel Hector St. Hilaire, and then the two rode on, side by side, firm, quiet figures. Now came days when suspense and fear hung heavy over the land. The sudden blow out of the dark that had destroyed Milroy startled the North. The fugitives from his command told alarming stories of the great Southern force that was advancing. The division of Hill, watching Hooker on the Rappahannock, also dropped into the dark where Lee's main army had already gone. The Army of the Potomac took up its march on a parallel line to the westward, but it was never able to come into close contact with the Army of Northern Virginia. There were clouds of skirmishers and cavalry between. Undaunted by his narrow escape at Brandy Station, Stuart showed all his old fire and courage, covering the flanks and spreading out a swarm of horsemen who kept off the Northern scouts. Thus Lee was still able to veil his movements in mystery, and the anxious Hooker finally sent forward a great force to find and engage Stuart's cavalry. Stuart, now acting as a rear guard, was overtaken near the famous old battlefield of Manassas. For a long time he fought greatly superior numbers and held them fast until nightfall, when the Northern force, fearing some trap, fell back. Harry had been sent back with two other staff officers, and from a distance he heard the crash and saw the flame of the battle. But he had no part in it, merely reporting the result late in the night to his general, who speedily pressed on, disregarding what might occur on his flanks or in his rear, sure that his lieutenants could attend to all dangers there. The days were full of excitement for Harry. While he remained near Lee, the far-flung cavalry continually brought in exciting reports. As Harry saw it, the North was having a taste of what she had inflicted on the South. The news of Milroy's destruction, startling enough in itself, had been magnified as it spread on the wings of rumor. The same rumor enlarged Lee's army and increased the speed of his advance. Sherburne, recovered from his slight wound, was the most frequent bringer of news. There was not one among all Stuart's officers more daring than he, and he was in his element now, as they rode northward into the enemy's country. He told how the troopers had followed Milroy's fugitives so closely that they barely escaped across the Potomac, and then how the Unionists of Maryland had fled before the gray horsemen.