Part Two of Splintered
It's so hard to write the second in a series or trilogy and make it as good as it's preceding novel.
I think this is the only second novel I've read that I actually liked and can say is as good as the one it follows.
If you liked Splintered, then you will like Unhinged.
I would say my only bone of contention-- and I see this in just about every author nowadays-- is using the title in the text of the story, somehow.