I am a great reader of fantasy books and had heard so much about this series... it was a huge disappointment and I hope parents will read the series before they let their kids read it. (Yes, I am a parent, but NO I do not believe in censorship - just common sense.) Then the parents can decide if it is appropriate. I thought it was garbled, depressing, with a poor story line and plot. Then the end... well that is another story in itself! This author was trying to teach his readers his own belief on death, -and that the judeo-christian belief in the afterlife is one big conspiracy and lie and that the truth is the merging of all things into one at the end of ones life. That is fine, but parents should be forewarned.
On a literary scale, however, the book is part of the worst of the fantasy genre - one of those books that does not have a clear story line or plot, and just seems to jump all over the place. Again, that is fine if you like those kinds of books. I prefer well written sagas like Lord of the Rings, Amber Chronicles, Harry Potter, etc... Those are nice and tight with clear story lines. The only good thing I can say is that the author does create characters with whom you can empathize. Anyway, good luck. I am sure many people disagree with me on this. But I would highly recommend that adults read these before turning kids loose with them, especially anyone under the age of 13.