In Medieval Europe, three boys meet a charming teenager who claims to be an angel; in fact, his name is Satan. Predictably, no good comes out of this. Also known as No. 44, The Mysterious Stranger is one of Mark Twain's last works that he was unable to finish before his death. It was written just after his wife and favorite daughter died and Twain entered financial trouble, so it was much more vicious and depressing than any of his other works. There are three different versions of the work in varying degrees of completion, but all involve the angel Satan using his powers to show how much of a Crapsack World we live in.