Into the Narrowdark by Tad Williams (8 )
The Queen of Attolia by Megan Whalen Turner (9)
Narrowdark is great, only hurt by the typical Williams style of it being essentially part one of the third book of a trilogy. There is a lot of build up and a little bit of payoff, but plenty left hanging for the final book. I was a bit unhappy, we get teased quite a bit about what the big bads are actually trying to do (Williams plays coy with mcguffin-like plots again), and it's clear what they are after by the end, but not why. And the why is essentially left at "hey, I'm going to tell you, but the book is over now... next time." It left a slightly frustrated taste. While I'd still not call it necessary, the Brothers of the Wind ancillary book helped one of the threads to hit harder than it would have otherwise. This series is a worthy successor to MS&T, if you liked that. This series gets away from the basic hero's journey of MS&T and is much broader in the disparate threads he keeps going.
The Queen is likewise very good. Sequel to the Thief, of course, and is again a shorter book that seems to be marketed as YA. Even more so than its predecessor, this has subtlety and character work that is rarely found in other books called "YA." Turner has a fairly unique style, which stands out more in this book. There are big things happening, but she'll take a short paragraph to update on the status of a war or something, but the bulk of the story is her characters talking about and around the action.