City of Bones: The Mortal Instruments, Book 1 (by Cassandra Clare)

It's hard for me not to review this novel independantly of the second and third book in the trilogy - which reader's of the first novel will be compelled to read. They are fun books with lots of references to demonology and angels - most of which are based in Judeo-Christian mythology. The books, in my opinion, neither support nor directly contradict a reader's faith (or lack of faith) - and reader's will likely put these books down entertained and with their world-view unimpacted. There are no explicit sexual encounters, but there are numerous scenes with lots of sexual tension and kissing. Many of these scenes are between two characters that believe they are biological siblings. Two supporting characters have a homosexual relationship. Teen characters drink at parties. There are almost constant and graphic descriptions of demon-killing. The adults in this novel are almost all negligent, untrustworthy, or evil. I read these on the recommendation of a ninth-grade student. I think they will appeal to teens and will likely interest boys much more than the Twilight phenomenon has. However, due to the content and the teens behaving solidly as teens, I'd put the age limit a bit higher than the main review and reserve them for high schoolers.