Copeseeley's book fills a glaring void in today's YA- speculative fiction that does not center itself on sexy but dangerous mythical creatures. Instead, her Compis world is very layered. The Five Tribes have a long history with distinct traditions. Copeseeley weaves details about her complex world into the narrative without awkward narrative lumps. The pace is brisk as we switch between three main character's point of view. The characters themselves are well-developed, and nuanced enough to edge the book into the adult SF/F category as well as YA. I recommend this for any fan of SF/F, or for any YA paranormal fans looking for a change.