Not as good as some of Jayne's earlier books. I think as she has become more caught up with plots focusing on psi powers she has lost something. Her characters are okay, but not as fun as some of the JAK people, and they seem very familiar. Also the plots are pretty similar as others in this series.
However, there were a few surprises and enough tantalizing hints about mysterious features of Rainshadow Island that I'm sure I'll be buying the next books in the series.