A fun, inventive little fantasy novel! Very descriptive of the mythology of a fantasy archipelago. Nyssa grows up knowing she's an orphan, but not knowing that her destiny's part of something larger... or that she has a twin. And she and her twin figure into the plot of Alaric, the despot, to rule the archipelago. Tense chases, interesting local customs and lore. Definitely written for youngish teens, but holds up for an adult to read too.