A review by kayteeem
Incarceron by Catherine Fisher

4.0

Take one princess. Add an impending wedding, a missing heir and a queen who appears to be an evil sorceress.

Alternately, take a prisoner with no memory of his past or crime, cities-worth of people locked away in an improbably-sized prison, and rumors of a secret escape route.

Mix well.

Add a dash of technology and the knowledge that all is not as it seems.

Come to the sad realization as you come to the last chapter, that while
Spoilerthe prisoner escapes, the sorceress gets her comeuppance, and the unwanted wedding is off
, you'll probably need to read the sequel to get to the real finale to the story.