The Painted Girl by D K Holmberg (2014) CreateSpace

A paid assassin captures a girl she is to bring back, but decides not to kill the abductor, the girl’s brother.  There is plot within plot and she draws the dangerous man out who would pay her or kill her.  In the end, it turns out that the man’s competitor arranged the whole thing so the assassin would have no choice but to kill the man who hired her.