Dexra, I have tons of light reading and billions of crime novels. Mackintosh doesn't sound like what I'm looking for at the moment - though she could be another time.
Thank you all for your input.
I used to love authors like Balzac, but my books have been stuck in boxes for 20+ years as dh always hates whatever shelving I suggest so they've been subsumed by life!
I'm after a proper, rich author who will really make me think. Heavy reading, I suppose.