“But the problem of the third book is that I have a plot which actually signifies something, and there are momentous events afoot, but I’d created such a feckless bunch of characters that before writing each scene I’d think, ‘Well, OK, who’s involved here?’ and I’d mentally go around each of the characters in my mind explaining to them what was going on, and they would all say, ‘Yeah? Well so what? I don’t want to get involved.’

