"Book of a Thousand Days"
I started this Sunday night and ended up staying up until almost 1am. I didn't even realize what time it was and how much I read because of how this book is written. There are no chapters, just a diary of a lady's maid and her lady. They are locked in a brick tower and it is the story of what happens. It is a great book.
This is a juvenile book, but I am still a teenager at heart I guess. It is an easy read and really interesting. I suggest you try it out.
You can also read her other books: Goose Girl, Enna Burning, River Secrets (series), there is also the Princess Academy, which I need to get from my sister, Cindy, to read next.