Retired before his time, Reginald Philpott was searching for an idea for what he could do with his life.  An idea flew past him.  You can use a computer.  Write a movie.  But what?  Then a small blurb in the newspaper set off his imagination:  Man goes missing and returns as a woman.  The result is a novel with the feel of a James Bond thriller, although in this case it's a Jane Bond thriller.