This one is pretty self-explanatory: if you've not read any Caribbean authors, this is wide open to you; if you have, you should select a novel that was written by a Caribbean author you've not read before. 

Some ideas to get you started: Marlon James, Nalo Hopkinson, Jamaica Kincaid, Edwidge Danticat, Kacen Callender, Soraya Palmer, Staceyann Chin, Safiya Sinclair, Maryse Condé, Cadwell Turnbull, Tiphanie Yanique, etc.