And All That Sea — Joan Merrill

Casey's relaxing Caribbean jazz cruise is interrupted when The Countess goes missing and the captain asks her to investigate, quietly. All Casey wanted was to enjoy the music, sit on the deck reading novels and possibly pursue her attraction to Aaron, an intriguing jazz magazine editor. But she can't resist a mystery, especially when homicide might be involved. Ship authorities believe the countess overstayed at an island stop, but Casey suspects somethinore sinister. Images of the woman flailing in the night sea haunt Casey as she uncovers several passengers with motives for murder. Unsure of whether the countess is alive or dead, the tenacious PI follows clues stretching from the seedy underbelly of Saigon to the luxurious ports of call of the Caribbean, the mystery's final resolution stunning even the seasoned investigator.