Mermaid's Cove (The Curse of the Mermaids Book 1)

He is human
Declan Heys is unaware that he guards the greatest treasure of the mer world. When he has a sudden run in with Melody, and has to face the wrath of his ex fiancé, things become explosive. Declan suddenly finds himself in a watery world that he has no idea how to handle.
She is mer
Melody, away from her mer family for three years, is shocked when her first meeting with Declan triggers her bodies desire to change. When Declan’s ex shows up, things go from bad to worse and Melody is forced to make a decision that will change both their lives forever