Teal Williams is content with her career as a ship's master mechanic--until Zane Cutter, the 'Casanova of the Caribbean,' makes her an offer she can't refuse: to climb on board with him for a real-life treasure hunt. Teal must help him dredge up a shipwrecked vessel containing an abundance of gold, silver, and emeralds--and she'll claim part of the prize. Zane needs a mechanic--not a lover--and Teal, who can also dive, is perfect for the job. So it suits him just fine that Teal is completely immune to his charms...or so he tells himself. But with a deadly enemy in their midst--one who's silently edging closer--Zane and Teal sink into troubled waters. Trapped in the middle of a perilous sea, they have no one to turn to but each other as they face down a danger that runs unfathomably deep--and a passion that runs even deeper.