These don't fit your preferences, but should be considered as you'll be in the Caribbean after all.

Caribbean – James Michener
Don’t Stop the Carnival – Herman Wouk
The Carnival Never Got Started – S. Guy Lovelace
A Small Place -- Jamaica Kincaid : a short easy read about her views of growing up in Antigua and was made into a movie: Life and Debt that was set and filmed in Jamaica

Any Tom Clancy is a good read as well. It’s a bit scary as several books are later emulated by the bad guys in the world.