Code of the Assassin — Bill Brewer

David Diegert is sucked deeper into Crepusculous, where corrupting influences challenge his assassin's code. Avery Forsythe, his Crepusclous trainer, seeks to guide David into a life dedicated to the global goals of the world's most secret society. Diegert is torn between unprecedented wealth and a deep mistrust of the concentration of power. Klaus Panzer, offers Diegert something no one else can, David's decision will lead him to be either a master of the universe or the enemy of the world's most ruthless tyrant.