I don't even know how to review this one except to say it was one of the best books I've read this year, but also BRUTAL.
Basically, a bunch of children are raised by their "Father", who might be a god, and are trained in a single subject, such as languages, animals, reincarnation, murder... And maybe the world might end? Or maybe the god might retire? Or maybe a man in a tutu might murder everyone? Come for the violence, stay for the feelings!