The tides have turned.

The call has been made.

And the legends of the sea are awake.

All seems well on the Birde Isles. Ally's first year as a mermaid is nearly at an end - and despite the comfort of building a life beneath the waves, the call of the land is inescapable. But something ancient stirred in the depths when Pasha left her home to aid Ally's rescue mission. A source of magic that holds the key to releasing a deadly enemy, intent on the destruction of mermaids.

When a member of Pasha's long-lost shoal suddenly appears with a dire warning, Ally and Pasha are faced with a choice: stay and guard their home, or journey across the seas to save the rest of Pasha's kin.

Whichever they choose, freedom threatens to slip through their fingers like sand...

The Kingsport Chronicles trilogy concludes with To Free the Waves.