Riders of the Purple Sage
Riders of the Purple Sage (1912) by Zane Grey is a classic novel of the American West. One of Grey's earliest works, it helped popularize the modern Western novel. It explores themes of patriarchy, religious abuse, and the archetypes of masculinity and femininity.
A gunman on the run, Lassiter helps a wealthy Mormon woman protect her ranch from a corrupt Bishop in her church.