How does one follow up writing “A Hell of a Book” that wins the National Book Award? If you’re Jason Mott, you write a sort-of, not-really, by all legal terms fictionalized — according to the forward — autobiographical story about what life is like as a semi-famous writer. Or actually you write two viewpoints: one about a writer running away from his roots that seem to be choking the life out of him and the other about a writer running to help soothe the roots that made him.