Loving her might just be the death of him.

When Coast Guard rescue swimmer Kaleb Theldon sees what he's sure is a mermaid pulling his partner into the murky depths of the Bering Sea, they call it PTSD. In order to save his career, Kaleb agrees to a week at an island spa off the coast of Maine. But the spa is nothing like he expected, and he isn't prepared for the sexy siren that crosses his path. But will her passion be more than one mere human can take?

Serena has a problem, and after four previous visits to the Wiccan Haus, she'd expected things to get easier. But on the mermaid’s fifth visit, Kaleb walks in and everything in her life becomes complicated. Never has she wanted to mate with a human man before. But can she love a man who has a chip on his shoulder a league long when it comes to mermaids? Can she deal with her own issues all while keeping her true self secret from the man she loves?

And will loving him prove deadly?

This time, the staff have more than healing on their agenda. Can the siblings, Myron, and Rekkus prove to these two lovers that things aren't always how they appear on the surface? Or will Kaleb's demise be found in his Siren's Serenade?

Welcome back to the Wiccan Haus.

They had come to the cliffs looking over the ocean. The moonlight lit a runway across the rippling waters below. He couldn’t look at her, didn’t want to see her laugh—or worse, decide he was crazy. “I was rescuing a friend from the waters off the coast of Alaska. That area isn’t kind on the best of days, and this was a rocky sea kind of day. A fishing vessel made a distress call. The ship was taking on water and they had abandoned ship as it sank. We had a man in the water so numb he couldn’t get into the ring, and my buddy Jim jumped in to help. We brought up the man and I lowered the wire to bring Jim up. Just then a huge wave took the ‘copter within feet of the water. Jim reached out to grab my hand, when a woman swam up beside him…and then he was gone under the water, staring up at me for a second before I lost him completely.”

Serena laughed. “That’s ridiculous.”

Kaleb gritted his teeth so hard he was sure he’d crack a tooth.

“Mermaids don’t live in Alaska. It’s too cold.”

“Excuse me?”

“Why would any mermaid want to live in those waters? It’s cold enough here.”

Kaleb shook his head to clear it, turned to look at her because no one in all the time he was going through this had reacted like this. “Let me get this straight: you aren’t arguing with me that mermaids exist, just that they don’t live in the Bering Sea?”

“Well, I suppose they could live there, but I can’t imagine wanting to. I mean there…” She stopped, her mouth forming an “O.”

“You were saying?”

“Nothing. I just don’t think you’re any crazier than anyone else here on the island.”

Now it was his turn to laugh. “You’re not very reassuring.”