Mer-Charmer — Amy Bearce

Beneath the waves, Phoebe learns she's more like her sister than she realized. The merfolk are drawn to her, and she can sense the magic of the sea all around her. Magic is finally at her fingertips, but that's precisely why the stirring dark power under the waters decides it wants her most of all. Now she must not only help the peaceful merfolk escape this ancient enemy, she must master her out-of-control powers. If she fails, she will die and darkness will rise and enslave the merfolk once more. But embracing her full power could cost her the very people she loves the most.

Though it is Book 2 of the World of Aluvia series, Mer-Charmer can stand alone.