I can’t really say what the book is about without cheating and looking at wikipedia because I only made it through the first hundred pages (of six hundred).
In those first one hundred pages nothing happens. There is a lot of scene setting and a lot of clumsily incorporated detail. The main character comes across as quite whiny and none of the characters are sympathetically drawn.
I was just bored. Which was disappointing because this could have been fascinating, had it been told differently. I’d really wanted to read it. I felt like another couple of rewrites could have made it a much better book.