Murder on the Lido Deck

Amy Bell and her husband Jeremy are about to embark on ten days of Caribbean cruise bliss as the special guests of Denise, one of the two charity presidents heading up this special trip.
When she's not bantering with Jeremy or trying to solve Denise's relationship problems, Amy's needling the other guests over game results and making a general, lovable, nuisance of herself, per usual. The fundraiser-at-sea is off to the perfect start-until murder disrupts the schedule.
Reporting to a summons from the ship's security director, Amy is confronted with two dead bodies on deck-one a leader of the charity event, who'd spent years helping others, and one an under-the-radar passenger.
Knowing the murderer had to be on board, Amy's sure she can wrap this case up in no time, but the more she questions the crew and passengers, the less she seems to uncover. Are the two deaths connected or is she looking for more than one murderer? How did the weapons even get on the ship? What drove someone to kill these seemingly harmless individuals?