Overboard by Keira Beck

Brides are supposed to go overboard on their weddings. Best men, not so much.

Former Navy SEAL Declan Flynn is in Lake Erie, grabbing some down time before starting his new job, when his soon-to-be boss calls and asks him to start early. But saying yes puts Declan in the wrong place at the wrong time … or maybe it’s the right place at the right time.
A cruise ship wedding, a missing best man, and suspected foul play are just the tip of the iceberg. Powerful people are not pleased that Declan’s interfering, and he quickly finds himself in the middle of trouble.

Fortunately, Declan Flynn is perfectly comfortable in the the middle of trouble.
Until, that is, beautiful—and filthy-rich—Alana Morgan enters the picture. Declan can’t afford to let her distract him, but he can’t stop thinking about her either. And when Alana is the next to go missing, Declan must risk it all—with the help of Nightforce—to find her before time runs out.