What is the main conflict in I, Tituba, Black Witch of Salem by Maryse Conde?

"I, Tituba ..." is a fictionalization of the real-life experiences of a black woman tried as a witch in 1600s America. The stern, rigid, Puritanical Christianity of the time is a vivid contrast, and powerfully defining context for the journey of personal transformation undertaken by the title character as she struggles to sustain her spiritual, racial, and gender identity.