I read the books my DD picks for book reports. This quarter, she read Awakening the Sleeping Tiger (http://www.amazon.com/Awakening-Sleeping-Tiger-Professional-Chinese/dp/0982826206/ ), which was a great adult read and generally kid-appropriate. (No sex, no profanity, no gratuitous or graphic violence, but the first part is set during the Cultural Revolution, so bad stuff does happen. Because the author was relatively naive, there weren't too many things that went over DD's head due to maturity / life experience issues.)

I have no clue what reading level it would be, though.