Clean Romances discussion

I didn't see this on the clean romance list. Tell me about Incarceron by Catherine Fisher. Can anyone tell me if this book is clean? I really want to read it!

It's clean, though not really a romance, which may be why it's not on this shelf. Dystopian blend of sci-fi and fantasy, very inventive world-building.

You can still see what group members thought of a book that's not on the shelf if you do this: Click on the Bookshelf, and in the "Add Books" box on the top left, type in the name of the book and then click "search." Then on the book results page, instead of clicking "add to group" click on "View Group Reviews" underneath the title, author, and stars.