To quote from an earlier comment - Obscurity does not equal a good grid. How many people are really going to be familiar to that level with the novels concerned? I mean, I know of them, even read one of them once a long time ago, but this is more of a 'special interest' grid really only suitable for scholars in the subject,

Oof! A bit specialist for me. I'm sure one more cultured might have stood a chance.

Very, very niche. No idea, pesonally.