What is the author's tone in I, Tituba, Black Witch of Salem by Maryse Conde?

The book's use of language might appear at first glance to be somewhat troubling. This is the sense that its vocabulary and style are far more advanced than a woman of Tituba's background (an uneducated black female slave) would realistically have available to her. Here the fact that the book's narrator is dead again comes into play. Specifically, the narrative voice and tone is that of someone who has passed beyond the physical world and into a state of being/identity that, in many ways, can be seen as transcending the meaning not only of life but of the words defining and describing that life.