Death on the Ocean Floor — Georgina Lee

From USA Today Bestselling author, Georgina Lee, the next in her exciting Bay Fundy Romantic Suspense series.
Tetra Martin can't imagine anything worse than finding her roommate stabbed to death in a cave accessible only at low tide...until she learns she's the main suspect. Having an acerbic tongue isn't helping her relationship with the local police, either.
Her best chance lies with David Haines, her buttoned-down supervisor who's determined to prove her innocence. But as the tide rises, so does the killer's intent to make Tetra the next victim.

"She really knows how to grab readers and keep their attention." Romantic Times