DNF @5% - was annoyed by the lack of scientific knowledge and just couldn't deal with the obvious bigotry and racism.
I've read several honest reviews about the book and am certain this is the last of her books I've tried to read. I'll fondly remember The Watchmaker of Filigree Street and might, one day, re-read it, though I'm afraid the 'suck fairy' got to it while it was sitting on the shelf.