Laura Anne Gilman 
Silver on the Road [EPUB ebook] 

Hailed by RT Book Reviews as ‘;fresh and originalstark and lovely, ‘ a heroic fantasy by an award-winning author about a young woman who is trained in the art of the sinister hand of magic. A Locus Magazine Bestseller.Isobel, upon her sixteenth birthday, makes the choice to work for the Boss called the Devil by some, in his territory west of the Mississippi. But this is not the devil you know. This is a being who deals fairly with immensebut not unlimitedpower, who offers opportunities to people who want to make a deal, and they always get what they deserve. But his land is a wild west that needs a human touch, and thats where Izzy comes in. Inadvertently trained by him to see the clues in and manipulations of human desire, Izzy is raised to be his left hand and travel circuit through the territory helping those in need. As we all know, where there is magic there is chaosand death.