Jude Knight

Arianna Westbrook has been dragged to Fenwick by her mother, who is anxious to test the truth of the Fenwick legend. She is triumphant when an eligible bachelor makes an offer for Arianna's hand. Not so Arianna. She recognizes Edwin Mills as the worst kind of fortune hunter. Thomas Medlock has a treasure to salvage, from a ship that was sunk in April's terrible storm. He and his partners have borrowed from their client to buy a diving bell, but success will see them free, clear, and with a reputation second to none.
He doesn't have time to rescue damsels in distress. Except that Arianna is his every dream come true. And besides, with her mother against her, she needs someone who is on her side, with no expectations and no questions asked.