There really is no plural to this. The whole point of what James writes is that true faith will be reflected in the works (actions) a person does. It is the easy way to tell if a person is righteous. He can pronounce faith, but no one knows until we see how someone interprets his faith by what he does.
The story evoked many emotions amoungst the lead characters. lizabeth use to be a carless girl that had matured because the events happening around her. also say how it changed her for the better or for the worst