Murder in the Caribbean.
Rachel Prince joins the Coral Queen for the holiday of a lifetime accompanied by her parents and her octogenarian friend, Lady Marjorie Snellthorpe.
They are shocked when a nun who is part of an exclusive religious party collapses and dies.
Could the death have been a result of natural causes? Rachel's best friend - cruise ship nurse - is keen to believe this is the case if it means keeping Rachel out of trouble.
Rachel is not convinced, and believes the d.