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A body in the water. A plethora of suspects. Rachel Prince must be on another cruise! Plus, by popular demand, Lady Marjorie Snellthorpe returns.... The crew aboard the fictional Coral Queen find themselves stretched to the limit by the antics of a queen tribute act, a troublesome stag party, and a group of excitable female cheerleaders. Rachel is accompanying Lady Marjorie on a cruise around the Baltics. The older woman is hoping for a mystery while Rachel seeks peace and quiet. PC Rachel Prince, cruise ship sleuth, can't believe it when a man dies under suspicious circumstances. The probable homicide occurs shortly after an unpleasant encounter with a Freddie Mercury look-alike. Rachel and Marjorie find themselves absorbed by the man's untimely death and surrounded by suspicious characters with ample motive for killing the unpopular victim. The Chief of Security wavers between involving Rachel in the investigation and keeping her away from it. Sarah, Rachel's best friend and cruise ship nurse, is keen to keep her out of harm's way, but it's a case of the irresistible force meets the immovable object when there's a mystery to be solved. Rachel is spurred on by the incorrigible Marjorie who is keen on interfering and testing her own sleuthing skills. Chief Waverley and Sarah are fighting a losing battle and become more and more exasperated by Rachel's involvement. In addition to this, they both have problems of their own. As the dead man appeared to have more enemies than friends, this mystery tests Rachel to the limit. She finds herself in danger as she tries to keep Lady Marjorie safe while solving the crime. Join the crew and passengers aboard the Coral Queen for another exciting adventure at sea!.