When Satan was still an angel of the Lord, he often engaged in conversations with God. He has just initiated an unusual experiment: a Earth populated with animals and humans of various kinds and inclinations. Satan wants to take a closer look at this. He descends to Earth and describes in a series of letters to his colleagues, the archangels Michael and Gabriel, what he experiences in this strange place. This text from the estate is Mark Twain at his finest: sharp-tongued, revealing, and very, very funny.