Harry saluted and Jackson looked at him gravely.
"You've come back alone, it seems," he said, "but you've obeyed my instructions not to come without definite news?"
"I have, sir."
"What have you seen?"
"We saw the main army of General McClellan crossing the Potomac at Berlin. He must have had there a hundred thousand men and three or four hundred guns, and others were certainly crossing elsewhere."
"You saw all this with your own eyes?"
"I did, sir. We watched them for a long time. They were crossing on a bridge of boats."
"You are dusty and you look very worn. Did you come in contact with the enemy?"
"Yes, sir. Many of their horsemen were already on this side of the river, and this morning I was pressed very hard by a troop of their cavalry. I gained a wood, but just at the edge of it my horse was killed by a chance shot."
"Your horse killed? Then how could you escape from cavalry?"