Zane Grey 
To the Last Man [PDF ebook] 

Based on a true story of Northern Arizona’s notorious Hashknife gang, Zane Grey’s classic 1921 western novel tells the tale of Jean Isbel, a woodsman hailing from Oregon. Caught in a bitter feud between the Isbels and the cattle-rustling Jorths, Jean is dragged into a generations-long clash between the two families, both of whom have sworn to fight until no man on the other side is left standing. Amidst it all, Jean finds himself hopelessly in love with Ellen – a Jorth, and a daughter of his family’s sworn enemies. Separated by the seemingly impassable barrier between them, Jean must survive the Jorths’ relentless desire for vengeance, and find a way to heal a years-old wound, so that he can be with the woman he loves.