Wave Song

Alys Fairweather has always loved the sea.
So when her father gets the opportunity to build a city beneath the waves, she is the first in the submarine with him. She never expected to discover an entire species of merfolk living there. And she certainly didn't expect to find one of them so captivating.
But the song of the waves is one she has never been able to deny, even when that temptation comes in the form of a battle-scarred merman.
Wave Song is a novella that takes place long before the Deep Waters series. It is suggested to listen to Whispers of the Deep before this one, but not necessary.