They were driving in the swarms of skirmishers.

Dick could see them retreating everywhere, in the wood over the hills and along an embankment.
Warner was on his right and Pennington on his left.

Dick glanced at them and he saw the belief in speedy victory expressed on the faces of both.
It seemed to him, too, that nothing could now stop the massive columns that Pope was sending forward against the thinned ranks of the Confederates.
They were much nearer and he saw gray lines along an embankment and in a wood.

Then above the crash and thunder of their covering artillery he heard another sound.

It was the Southern bugles calling with a piercing note to their own men just as the Northern trumpets had called.
Dick saw a great gray multitude suddenly pour forward.