"Milt, you should give up that wild life - an' marry - an' have a home."
This quote is Mrs. Cass speaking to Milt Dale. This quote is the first of foreshadowing that we see showing that Milt Dale does things quickly without much thought, and lives his life for the adrenaline rush. Therefore it shows that the heroic acts he takes towards Helen is something of his nature and something he would pursue.
"The prayer of her dreams had been answered. To bring good fortune to her family; to take care of this beautiful, wild little sister; to leave the yellow, sordid, humdrum towns for the great, rolling, boundless open; to live on a wonderful ranch that was someday to be her own."
This quote clearly shows the emotions going through Helen's head as she travels out West with her sister. We can tell that she has no preconceived notions about the dangers of the West and has heard nothing about the wild life that people live out there. This is the perfect mentality that gets her kidnapped in the book.
"Often Helen looked back into the gloom behind. This act was involuntary and occasioned her sensations of dread. Dale expected to be pursued. Ans Helen experienced, along with dread, flashes of unfamiliar resentment."
This is the first thought of Helen's throughout the book where she opposes an authority figure. She barely knows Milt Dale, yet she is following him and it sparks a sense of emergency and confusion in her as she becomes wary of her surroundings and wary towards him. She starts to no longer trust him and starts thinking of plans to go out on her own.