Relentless eBook

 Jack Peregrin, a private investigator who was once a mercenary, takes on a job from a woman who wants to get the goods on her errant husband. The job turns into a nightmare when Jack discovers the husband is not hiding with another woman but is hiding from his bookie to whom he owes a large sum of money. The man leads Jack on a chase from Las Vegas to Mexico to Puerto Rico to Brazil to The Bahamas to Miami. Along the way, Jack and the bookie clash and Jack finds himself fending off the bookie and his goons who are out to kill him and the woman he loves.