This was definitely a unique book. It is set in the future where they have amazing technology but they choose to go back to a time when things were more "simple" - and outlaw most of that technology. That's in the Outside.
Inside is even more amazing in this story, inside a prison that reuses whatever dies or is destroyed, reinvents itself and purposely tortures those within it.
I just loved this book, I can't wait to read more and see what happens to Claudia and Finn.