Spy fi tion? Not my genre, mate. But, looking at 'The Little Drummer Girl' on BBC TV the other night, it's obvious that there are at least 3 'Rules' that you have to follow, if you want to move into that area. As a writer of Crime Fiction, I'm an observer, of course, (but I'm sure I'm right!) Uh oh, looks like somebody is listening in. Could it be a spy -