Diving in Deep

When underwater archaeologist, Quinn, discovers an artifact in the ruins she is exploring just offshore, she doesn’t realise the significance of it.
At least, not until she comes face to face with the owner of the artifact… who happens to have a tail.

Introduced to the world of the Merpeople, Quinn must keep the exciting discovery quiet in order to protect their secrets, all whilst dealing with new feelings that are stirring towards her merman guide, Merrik.
If that wasn’t difficult enough, she must contend with the persistent interference of a dangerous treasure hunter searching for his next big prize.

And Quinn is all too aware that the Merpeople would be his perfect target.

[From Lemma Soft Forums]