Classic fantasy. Three main character points of view lead us through a strange world where water has covered the Earth, what's left of humanity huddles on floating cities worrying about when the next 'cleansing' will occur to reduce excess citizens the cities can no longer support and sell them into slavery for a mysterious despot, and gemstones can help certain wielders called Stoneweavers animate the element they're attuned with to act as avatars. The system of magic is well thought out, the three main characters credible and believable, and the way the three pathways converge page-turning. Language is kept basically 'clean' and there's lots of magical duals, so would be safe and interesting for a YA reader as well as adults. I'll be looking into Mr. Lewis's next book! ( )