Both armies, making ready for battle to-morrow, if it should come, slept on their arms, while the dead and the wounded yet lay thick in the forest and on the slopes and plain.
But Harry was not among those who slept, at least not until after midnight.

He and Dalton sat at the door of Jackson's tent, awaiting possible orders.

Jackson knew that Burnside, with a hundred thousand men yet in line and no artillery lost, was planning another attack on the morrow, despite his frightful losses of the day.
The news of it had been sent to him by Lee, and Lee in turn had learned it from a captured orderly bearing Burnside's dispatches.

But neither Harry nor Dalton knew anything of Burnside's plans.

They were merely waiting for any errand upon which Jackson should choose to send them.
Several other staff officers were present, and as Jackson wrote his orders, he gave them in turn to be taken to those for whom they were intended.
Harry, after three such trips of his own, sat down again near the door of the tent and watched his great leader.