Murder on the High Seas — Sara M. Barton

When caregiver Kate sails for Bermuda on a little R&R, she never expects to find herself drawn into a murder plot. Pestered by a man who can't take no for an answer and wooed by a man who seems too good to be true, Kate has to figure out what is real and what is not. It's not easy to be a middle-aged, baby boomer femme fatale, but the ever feisty, confident Kate does her best to solve the mystery.