Hi Arnie, I hope you are well today. I really liked your word suggestion of crevasse. In addition, I really liked your idea of entitling each chapter after the character narrating it. And thus I have a question: What would you suggest for two chapters toward the end of Part 3 in which the narration switches from Shelby to the Spirit Man halfway through? I want to make this switch clear to the reader but don't know how. 

Thanks again Arnie,

Vivian.