There is many YA book like this but I have to admit it's very catchy. Main character Aderyn is little bit annoying but it was just few chapters so we'll see. But I like that idea of transformation to the swans or crows,ravens etc. And especially images on every pages. These little feathers and the bottom and swans. Really great work and I hope so there will be at least one map of this world in the book. I'll love to read this story