In the fourth Reluctant Sleuth Mystery, DARK SEA, Gary and Becca Kemmerman are celebrating their first anniversary cruising the Caribbean. As people disappear and the body count rises, Gary and Becca find themsleves entangled in murder, rape, and an $86 nillion thedt. Can they survive attempts on their lives, work through unexpected marital problems, and save one another? Who will survive and who will end up in the DARK SEA?