A year ago, Sapphire's Dad disappeared without a trace, lost at sea. But somehow she has always known that he was still alive. Then she meets Faro, a mer-boy, and discovers some of the secrets of Ingo (the world beneath the sea). And while no one can quite say what has happened to her Dad, Sapphire is closer to finding things out about herself.
As fantasy goes, this isn't a bad story. It could have used some serious editing to tighten up the narrative a bit and shorten the length, but it has some nice character development. Still, I never got a clear sense of who Sapphire was (not even how old she was!), and several plotlines seemed to get dropped in the name of keeping the action going. There's something to be said about leaving some things a bit open, but too much of that is not a good thing.