Shade's Children - Garth Nix

I enjoyed this very much, read it in two days. The story is fast and makes you think at least a little bit. The characters are very easy to sympathize with and the whole plot of the novel made me really grateful to life where I live with all that I have. Basically a perfect YA book, concepts that make you think, questions left unanswered and a great story. I would recommend this to those hesitant teenage readers who like science fiction and video games.