In Davis’s fifth Cruise Ship Crime Mystery, Dr. Mayhew shares the stage with a suspected killer aboard The Baroness. When The Baroness is delayed in port for a day, ship’s doctor Alan Mayhew visits a museum in Jayapura and finds a photograph of his great-grandfather, Dr. Edmund Netter. Hours later, when the cruise liner sets forth from Indonesia en route to San Francisco, great-grandpa’s ghost comes along for the ride and the two doctors team up to investigate the murder of a mysterious female passenger. When it turns out the beguiling victim was actually a drug mule, the shocking news lights the fuse to a dramatic chain of events involving a playwright, the back streets of Madagascar, a psychopath, and a septic tank. Dr. Alan Mayhew, his girlfriend Tiffany, Babette and Edmund must find a way to stop a deadly villain who has scripted the finale down to the last explosive detail.