CRUELTY OF GENERAL LEDBETTER—ANOTHER NARROW ESCAPE—ORDERED TO CUMBERLAND GAP—A WEARISOME JOURNEY—ARRIVED AT THE GAP—THE STOLEN LETTER—ALONE IN THE DARKNESS—THE NORTH STAR—DAY DAWN.RETURN HOME FROM CUMBERLAND GAP—MEETING WITH PARSON BROWNLOW ON HIS TRIP TO WASHINGTON.CHAPTER XXIII.