Murder on Main: Millie's Cruise Ship Mysteries Book 12

Assistant Cruise Director Millie Sanders-Armati and her new husband, Captain Nic Armati, have just returned from their week-long honeymoon on the tropical island of St. Maarten.
Their idyllic week in paradise is quickly forgotten when they return to the ship, “Siren of the Seas,” and discover that a passenger has drowned in their bathtub.
Initially believed to be an accidental drowning, the investigation soon turns to a murder investigation. The passenger, a member of a senior travel group, has more than her share of enemies and the list of suspects quickly grows.
When Millie is assigned to help coordinate the group’s activities, she encounters possibly the most annoying passenger ever; only to discover she’ll have to work with this person for the remainder of the cruise.
Can Millie survive working with the annoying guest long enough to help solve the Murder on Main or will solving the mystery be the least of her worries?