Have you ever read The Screwtape Letters by CS Lewis? I’ve read the whole thing a couple times. The audio version, which is brilliantly narrated by John Cleese, is also available on Youtube. I’ve listened to that as well.
In this book, Lewis created a character called Screwtape who is the uncle of a junior tempter named Wormwood. They are both demons, in the traditionally Christian sense. The setting is entirely Christian, but from a demonic point of view. Screwtape has some position of authority within the demon hierarchy, “an under-secretary of a department.” The nephew has been assigned to tempt a young man so that he ends up in hell. Screwtape writes letters to his nephew containing instructions and advice towards that end, and he does this as both an uncle and as an under-secretary.... [Read More]