I then work from the prologue from the previous novel to start to build the next book. In most cases, the bad guys (and girls) reveal themselves through the course of the writing process. I don’t know who they are, or, in many cases, just what they are doing when I start a novel. The characters reveal themselves and their motivations as I write. And in ALL cases I am just as surprised by the content and the bad people who enter a new novel as you are. My wife always says, “No surprise for the writer no surprise for the reader.” I can’t tell you how many times through the past several years a character revealed him- or herself as I was writing and blew me away.