Bestselling mystery writer and amateur sleuth Jessica Fletcher is invited to travel to London on the grand dame of ocean liners, the Queen Elizabeth II, as one of seven guest lecturers. The night they set sail, a fellow speaker is found brutally murdered. Now Jessica has just four days at sea to find the killer before she finds more of her colleagues, or even herself, dead in the water! nBestselling mystery writer and amateur sleuth Jessica Fletcher is invited to travel to London on the grand dame of ocean liners, the Queen Elizabeth II, as one of seven guest lecturers. The night they set sail, a fellow speaker is found brutally murdered. Now Jessica has just four days at sea to find the killer...before she finds more of her colleagues, or even herself, dead in the water