April was not far away. The fierce winter was broken up completely, but the spring rains were uncommonly heavy and much of the low country about Petersburg was flooded, making it difficult for cavalry and impossible for infantry. Nevertheless the army of Grant, with Sheridan now as a striking arm, began to close in on the beleaguered men in gray. Lee had held the trenches before Petersburg many months, keeping at bay a resolute and powerful army, led by an able and tenacious general, but it was evident now that he could not continue to hold them. Sheridan's victorious force on his flank made it impossible.

The Winchester men were in a skirmish or two, but for a few days most of their work was maneuvering, that is, they were continually riding in search of better positions. At times, the rain still poured, but the three young captains were so full of expectancy that they scarcely noticed it. Dick often heard the trumpets singing across the marshes, and now and then he saw the Confederate skirmishers and the roofs of Petersburg. He beheld too with his own eyes the circle of steel closing about the last hope of the Confederacy, and he felt every day, with increasing strength, that the end was near.

But the outside world did not realize that the great war was to close so suddenly. It had raged with the utmost violence for four years and it seemed the normal condition in America. Huge battles had been fought, and they had ended in nothing. Three years before, McClellan had been nearer to Richmond than Grant now was, and yet he had been driven away. Lee and Jackson had won brilliant victories or had held the Union numbers to a draw, and to those looking from far away the end seemed as distant as ever. At that very moment, they were saying in Europe that the Confederacy was invincible, and that it was stronger than it had been a year or two years earlier.

Dick, all unconscious of distant opinion, watched the tightening of the steel belt, and helped in the task. He and his comrades never doubted. They knew that Sherman had crushed the Southeast, and that Thomas, that stern old Rock of Chickamauga, had annihilated the Southern army of Hood at Nashville. Dick was glad that the triumph there had gone to Thomas, whom he always held in the greatest respect and admiration.

He often saw Grant in those days, a silent, resolute man, thinner than of old and stooped a little with care and responsibility. Dick, like the others, felt with all the power of conviction that Grant would never go back, and Shepard, who had entered Petersburg twice at the imminent risk of his life, assured him that Lee's force was wearing away. There was left only a fraction of the great Army of Northern Virginia that had fought so brilliantly at Chancellorsville, Gettysburg, the Wilderness and on many another battlefield.

"Only we who are here and who can see with our own eyes know what is about to happen," said the spy. "Even our own Northern states, so long deluded by false hopes, can't yet believe, but we know."

"Did you hear anything of the Invincibles when you were in Petersburg?" asked Dick.

"I heard of them, and I also saw them, although they did not know I was near. I suppose Harry Kenton could scarcely have contained himself had he known it was my sister who filched that map from the Curtis house in Richmond and that it was to me she gave it."

"But he was all right? He escaped unhurt from the Valley?"

"Yes, or if he took a hurt it was but a slight one, from which he soon recovered. He and his comrades, Dalton, St. Clair and Langdon, and the two Colonels, Talbot and St. Hilaire, are back with Lee, and they've organized another regiment called the Invincibles, which Talbot and St. Hilaire lead, although your cousin and Dalton are on Lee's staff again."