Good book chapters are like bad treasure maps. They lure you in without yielding the treasure. Learn how to make your readers continue the hunt! List of traditional transition points for book chapters: change of setting, point of view, etc.
Creating Credible Female Villains -note to self use this for the blue war. Also, borderline personality disorder is rarely done right I books, and is a cop-out. I know people with bpd and they are not villains, just difficult to understand.