It was not enough to take Winchester.

They must follow the beaten army to the Potomac.
Harry had a vision of flame-swept streets, of the whizzing of bullets and shell, of men crowded thick between the houses, and of the faces of women at windows, handkerchiefs and veils in their hands.

Before him was a red mist sown with sparks, but every minute or two the mist was rent open by the blast of a cannon, and then the fragments of shell whistled again about his ears.

He kept his eyes on Jackson, endeavoring to follow him as closely as possible.
He heard suddenly a cry behind him.

He saw Dalton's horse falling, and then Dalton and the horse disappeared.