Great book! Great Adventure! There are these two princesses, they are sisters. They are opposite, one brave one afraid. The one that wants to go on adventures and slay dragons ends up getting sick. The timid sister has to pretty much slay dragons and find the cure before she dies. Not a predictable happily ever after ending. Very creative and full of adventures and even love.
The author, Gail Carson Levine also wrote Ella Enchanted one of my favorites, the book NOT the movie.
This book is a WHOLE BOOK. Great for 9-10yr. old girls, I don't think my son would want to read it. I loved it!