But it is not to be. On board in the most luxurious suite is the elderly and world-famous Lady Emily Harworth. Immensely wealthy, Lady Em is the owner of a priceless emerald necklace that she intends to leave to the Smithsonian on her death.
Three days later Lady Em is found dead-and the necklace is missing. Is it the work of her apparently devoted secretary, or her lawyer-executor, both of whom she had invited on board for the cruise?
Celia, with the help of her new friends Willy and Alvirah Meehan-who are splurging on their wedding anniversary-sets out to find who the killer is, not realizing that she may have put a target on her back.