Fiction is not mathematics. Yet, when we work at a draft a number of times it starts to feel that way. We write a novel step by step the first time, then we go over it at second draft to check how each chapter serves the story, each paragraph, each sentence, we look at how one thing leads to another and how they add up. Yes, this is how to write a novel, but no it is not everything. Sometimes addition can become subtraction.
You have to be really careful not to lose the mystery, those non-linear lines in your fiction which defy logic. These are the curious sentences whispered to you as you fall in and out of dreams and daydreams. They are the very soul of the novel.
With my first novel, I had a sentence which haunted me and it was really the 'x' that marked the treasure for me writing that novel 'Becoming Strangers'. That sentence was 'I am coming to you for help, I don't know why.'
I set it in a dream sequence in which my hero, who is dying of cancer, sees...