William Blake wrote in Proverbs of Hell ‘You never know what is enough unless you know what is more than enough’. Writing the ending to a novel always makes me think of these words because I never seem to know what is enough, what is more than enough or what isn’t quite enough. I often have a clear idea of the ending but then I tinker, and tinker… I’ve just been away for a week and promised myself that I’d ‘sort out’ the ending of my latest novel. Cue frantic scribbling in