The Body in Davy Jones' Locker — Elisabeth Crabtree

Dead Men Tell No Tales
 
Grace has never been happier. She and Kyle are embarking on a blissfully romantic weeklong cruise in the Caribbean and she is looking forward to sun filled days by the pool, exciting excursions on private islands, all you can eat delicious food, and moonlit nights in her new husband's arms. And maybe, just maybe, tickets to the Dread Pirate Davy Jones Comedy Magic Show, one of the cruise's most popular shows.
 
When the magician makes one of the passengers disappear in front of the audience, Grace is suitably amazed. However, when the passenger doesn't reappear by the end of the show, Grace is suitably worried. Worried enough to do some sleuthing backstage.

When a dead body appears it's up to Grace and Kyle to find the killer before they end up in Davy Jones' Locker as well.