Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Right up there on my top 20 list.

I've read just about every science fiction and "fantasy" book I've been able to lay my hands on and this is one of my favourites (not quite up there with Neuromancer and Tigana, but pretty close). It is one of those books you can read again and enjoy. The caracters have depth and are believable, no all-good or all-evil caracters, even "sickly sweet little Valentine", as one reviewer has it, has her share of conflict and displays a darker side. This is not a "one little kid saves the universe" type of book in the good old pulp tradition. It's about being different, the pressure adults put on children to perform, making difficult decisions, and about empathy. And just in case that sounds boring, there's plenty of action for the lover of fast moving adventures.