This Book of Death is part of a larger work that was originally written for the Swahili-speaking church. It explores the notion of death that is not the end of everything. And to the surprise of everyone as commonly known, that death is an event which clinically caused by the cessation of brain function, in here we will show you death to be a living spirit, which is also a location. We will challenge in detail the doctrine of purgatory to be unchristian. Also we will show you, that death is not predestined. While busy on all these, you will be able to teach others: what is death and where did it come from. Also being able to respond proficiently if Heaven, Hell, and Gehenna do exist or not. Then we will reveal what is the set lifespan for the human being. This brief is too shallow, that it disservice the book.