She Wore It Tied-Down — R. William Rogers

When pretty Dolly Randolph, barely seventeen, naive, and helpless to prevent it, is viciously assaulted and her beloved father is killed, it sets in motion a driving hatred that can only be appeased by the killing of the unscrupulous man and his two sons who are responsible.

Befriended and taken in by a legendary and aged ex-gunfighter, Dolly learns under his tutelage, not only how to handle a six-gun, but additionally what it takes to kill another human being
.
She is an avid student and learns quickly. After having been armed with the knowledge and techniques necessary to get the job done, she embarks on a relentless hunt for the three men that will come to an end one way or another as she tracks them across the harsh desert southwest, toward the sleepy little village of Juarez.