Book Recommendation

I had to read this for a class I took this semester: Ghost Stories and context. It's great! It's not really about ghosts, more about the supernatural. It's cool because it has a nonlinear timeline and three different narrators. Despite that, it isn't that hard to follow. It's set on an island in 1980- and those living on the island are all descendants of former slaves. It's a matriarchal society and is heavily influenced by hoodoo. It sounds weird but it isn't really, it's just good!