Early in October the Union Cavalry began their favourite pastime of "chasing" Stuart.

General Pleasanton with a small force and a horse battery began it, marching seventy-eight miles in twenty-four hours; but Stuart marched ninety in the same time.

He had to.
About ten o'clock in the morning of October tenth, General Buford, chief of cavalry, set the 6th Pennsylvania Lancers galloping after Stuart.

Part of the 1st Maine Cavalry joined the chase; but Stuart flourished his heels and cantered gaily into Pennsylvania to the amazement and horror of that great State, and to the unbounded mortification of the Union army.

He had with him the 1st, 3d, 4th, 5th and 9th Virginia Cavalry; the 7th and 9th North Carolina, and two Legions; and after him went pelting the handful that McClellan could mount.