Another look at how to write a thriller. This early Graham Greene work is a blueprint. Short, tight, and one thing he does extremely well, is to make certain that the story points are always clear. You the motivations of every character, sometimes it's a little repetitious, but that's okay - like checking in on what's going on.
As a thrill-ride, This Gun For Hire is extra cool because it was written before WW2 and is centered on an unlikely character trying to foil an evil military-industrial-complex-type trying to start the second big war. I caught myself checking the copyright (1936) several times.