Livre d'Or

I think you might appreciate Skallagrigg. It's the same William Horwood who wrote all those interminable books of high fantasy with moles, the Duncton Wood series, which is exactly how I ended up acquiring an adult book by the same author. It's very 80s and very iddy, but it's doing something interesting at the intersection of fantasy (the myth of the Skallagrigg), SF (it's set in the near future relative to the 80s and speculates about computers becoming powerful and ubiquitous), and mimetic (the plot is about disability liberation and deinstitutionalization, so kind of set in the real world in spite of the speculative elements).