Zane Grey 
Riders of the Purple Sage [EPUB ebook] 

Riders of the Purple Sage tells the story of Jane Withersteen and her battle to overcome her persecution by members of her church. Throughout most of the novel she struggles with her "blindness" in seeing the evil nature of her church and its leaders, trying to keep both Venters and Lassiter from killing her adversaries, who are slowly ruining her.