Saoirse Sorkova, a murderous siren whose very existence is illegal, is forced to work with the prince she hates to hunt a deadly killer--herself.

"Lira, a famous siren, must prove herself by stealing the heart of the man, a prince, threatening their race"--

Seventeen-year-old violinist Moira Alexander joins with an old friend, Jude Osric, in seeking a killer after the sirens who live near their island are falsely accused of murder.

"Welcome to Tiankawi--shining pearl of human civilization and a safe haven for those fleeing civil unrest. Or at least, that's how it first appears. But in the semi-flooded city, humans are, quite literally, on top: peering down from shining towers and aerial walkways on the fathomfolk--sirens, seawitches, kelpies and kappas--who live in the polluted waters below. For half-siren Mira, promotion to captain of the border guard means an opportunity...