Diesel's Reckoning. Savage Tide MC, #12

Nikki Rose thought the worst part of managing the marina was dealing with difficult boat owners---until drug smugglers started sinking boats to send a message. When territorial drug runners begin using the marina to smuggle product and eliminate anyone who might interfere, Nikki finds herself targeted for refusing to look the other way. Her knowledge of every boat and slip in the harbor makes her dangerous to criminals who need the marina for their operations.
Enter Diesel---a Savage Tide prospect with everything to prove, a man whose construction and maritime background taught him that sometimes you have to tear something down before you can build it back stronger. She's fighting to save her father's legacy. He's fighting to prove himself worthy of the brotherhood. Together, they're about to make drug smugglers wish they'd chosen easier prey. Diesel Robinson knows how to handle boats, buildings, and problems that require creative solutions, but he's never had to protect someone whose job puts her directly in the path of smuggling operations every single day.
Nikki's fierce loyalty to honest fishermen and refusal to let criminals destroy her marina make her the perfect partner for waterfront warfare, but her determination to fight for what's right drives him crazy with the need to prove he's man enough to protect her. When the drug runners escalate to eliminate everyone who knows their operation, Nikki and Diesel must trust each other completely. Because in the Outer Banks, some harbors are worth fighting for, and some prospects will do anything to prove they deserve their patch---and their woman.
Some waters run deeper than others.