My Body Lies Over The Ocean

Description for MY BODY LIES OVER THE OCEAN by J S Borthwick:

New England English teacher Sarah Deane, with husband Alex and feisty Aunt Julia in tow, is getting ready to board the Queen Victoria for a luxurious transatlantic cruise. But before they even set sail, two passengers are killed-both members of the British-American trade commission. Now Sarah must wade through a sea of peculiar passengers and quirky crew members to find a killer aboard Vicky--and drop anchor on the seafaring scoundrel...

This is #9 in A Sarah Deane Mystery.