Looking for a book I read once from the high school library.
It starts off with a handful of children in a special school, they are the only students of this school, and they have lived there all their lives. They turn a certain age and find out that they aren't human, each of them is some magical or mythological creature, like a cyclops(which were logic/technological based) or witch(who used rhymes/chants to call out their power).
They end up using their new found powers to rebel against the teachers and escape the school.
I remember that they are each in some way very important to each of the different races they belong to, like children of the chief/leader. They were all kept in the school to keep the peace between the different races.
I realize that's not really much to go on, sorry.