Invite to a Showdown — Terrell L. Bowers

After a bizarre double killing forces her into exile, Rowena Jansen is living like a hermit in Keylock, Colorado, and concentrating only on survival. Travis Clay went off to war and witnessed the terrible suffering of men and his country. Afterwards, he joined his friend to work on a ranch, but when a deadly ambush costs Clay a herd of cattle and leaves him near death, he sets out to find the men responsible. Inadvertently ending up in Keylock, his fate is joined with that of Rowena. Four men are searching for her, intent on a killing, while Travis is on the trail of five or six murdering rustlers. The only way to win such a war is to invite both sides to a showdown.