17//8, 21//3 & 18//9 powered Postmortem, the 1st novel of the Kay Scarpetta Series This applied numerology research case study investigates the Kay Scarpetta Series of novels by Patricia Cornwell that launched in 1990 with Postmortem. Since 2018 we have been conducting and publishing in-depth research into what numbers and number sequences were driving the years that were responsible for international bestselling authors