An off-duty Coast Guardsman is fishing with his family in the Atlantic just off south Florida when he sees, and then calls in, some suspicious behavior in a nearby boat. It's a snazzy craft, slick and outfitted with extra horsepower, and is zipping along until it slows to pick up a surfaced diver . . . a diver who was apparently alone, without his own boat, in the middle of the ocean. None of it m... goodreads.com