This story, among the Wesleyan stories, is the first to use witchcraft as a hypothesis.It's about Haitian voodoo cults using terrifying dark wizards to make dead people do weird things at night at their beck and call.Since the idea was not very bold enough at the time of creation, the basis of the hypothesis was placed on a kind of "drug anesthesia", which is quite "scientific".In fact, there can be further ideas, such as simply acknowledging the existence of witchcraft (like the ideas used in a series of fantasy stories in recent years), for example, from the complex activities of the human brain, and so on.Now, of course, no such major modification has been made, and the original appearance is still maintained.The reasoning of this story is very strong and quite fascinating.