A story’s Low Point throws you deep into the valley of despair where you, like our hero, feel closed in by walls too high to overcome. This is the fourth of the seven skeleton bones for my new novel MILK RUN. This fourth bone—the Low Point—is where Captain Toby is as far as it seems possible from achieving his goal. Three quarters of the way into the story, this is the all-hope-is-lost point. And for MILK RUN, there is a…