Lone Star and the Border Bandits — Wesley Ellis

ACROSS THE BORDER!
Nightriders are raiding the ranches near the Starbuck spread, so Jessie and Ki set out to raid the raiders. Then their trails split ...Jessie's leads to a remote U.S. Army outpost and the arms of a cavalry officer, while Ki's leads him South of the Border where the fighting gets cold-steel hot!

THEY CALLED THEM THE LONE STAR LEGEND
Jess Starbuck -- shooting like a man, loving like a woman, driven to avenge her father's murder... Ki -- the martial arts master sworn to protect her and the Starbuck empire... Together they rode for vengeance and conquered the West as no other man and woman ever had!