The Midas Touch — Katherine Kendall

They were both hooked

Whales were dying mysteriously off the coast of Cape Cod, and marine biologist Shelby Haynes was trying to discover the cause. Which was how she found herself being hauled from the ocean by one brawny Jake Lawson, who soon regretted having reeled her in....

Not only was it part of this irate mermaid's job to monitor his salvage operation, it was also obvious that she had no time for "irresponsible" treasure hunters or pirate ships. But Shelby and Jake were stuck with each other, for better or worse, and soon neither one could imagine being stuck with anyone else.