I hope the three main characters develop somewhat in the sequel, because I can't see anyone choosing to subject themselves to several books of Harper, Rhen and Grey as they currently are.
At its best, Stronger, Faster, and More Beautiful is a cross between This Mortal Coil and Black Mirror. Maybe it fails to deliver on a setup worthy of a five-star read, but that doesn't negate its many thought-provoking qualities.
Atmospheric, creepy and ultimately predictable, The Twisted Tree is like microwave mac and cheese--it does the trick just as you know it will, but it's not going to yield anything new.
You must be strong enough to strike and strike and strike again without tiring.
There are no new ideas here. Don't be fooled by the Chinese aesthetic--the story is the same betrayed exile fighting for her birthright, gathering allies in unexpected places that you see all too often in YA fantasy.