The Hunter is a 1962 crime/thriller novel. It is part of the Parker series, by Richard Stark.
The series revolves around a murderous thief who, despite his line of work, does his best to maintain a moral code. Having been betrayed, shot, and left for dead by his partner and wife, he embarks on a relentless quest to retrieve his money and wreak revenge.
The novel was adapted as the movie Parker in January of 2013.