Catch of a Lifetime — Judi Fennell

SHE'S ON A MISSION TO SAVE THE PLANET...
Mermaid Angel "Tritons has been researching humans from afar, hoping to find a way to convince them to stop polluting. When she jumps into a boat to escape a shark attack, it's her chance to pursue her mission, but she has to keep her identity a total secret...

WHEN HE FINDS OUT WHAT SHE REALLY IS, THEY'RE BOTH IN MORTAL DANGER...
For Logan Hardington, finding a beautiful woman out its boat is surely not a problem -- until he discovers she's a mermaid, and suddenly his life is on the line...