The writer of mystery novels.
The novel is a book that has many narrations and poses a typical representative character and has cation with some of the degrees of realism. As per the text, the mystery novel wants to portray the happening of the gruesome as the full moon is in the sky and is at the highest point.
Hence the roughly midnight.
Hence the option B is correct.
Learn more about the novel's wants.
brainly.com/question/1309721.