Kirke and Polly Plummer—that the evil Jadis (later to become the White Witch) will pose a great threat to the Narnians. Aslan charges Digory and Polly with a quest to acquire a magic apple that, when planted, will protect Narnia from Jadis. The Last Battle Though Shift the Ape and the other villains act in his name (dressing the naïve donkey Puzzle in a lion-skin), Aslan himself only appears late in the story in a paradise entered through a stable door. He brings Narnia to an end, and leads into his own country such of its inhabitants who, coming to the Stable Door as the world ends, look into his face and love him, some to their own surprise. At the end of the book, he informs the other characters that "all of you are—as you used to call it in the Shadowlands—dead", and that the afterlife in which they now find themselves is the true reality as they go "further up and further in". Influences Christian interpretation Although Aslan can be read as an original character, parallels exist with Christ. According to the author, Aslan is not an allegorical portrayal of Christ, but rather a suppositional incarnation of Christ Himself: In one of his last letters, Lewis wrote, "Since Narnia is a world of Talking Beasts, I thought He [Christ] would become a Talking Beast there, as He became a man here. I pictured Him becoming a lion there because (a) the lion is supposed to be the king of beasts; (b) Christ is called "The Lion of Judah" in the Bible; (c) I'd been having strange dreams about lions when I began writing the work." The similarity between the death and resurrection of Aslan and the death and resurrection of Jesus is obvious; one author has observed that like Jesus, Aslan was ridiculed before his death, mourned, and then discovered to be absent from the place where his body had been laid. In this interpretation, the girls Susan and Lucy who witness Aslan's death, mourn him and witness his resurrection would stand for The Three Marys of Christian tradition. Aslan's words to the Calormene in The Last Battle ("I take to me the services which thou hast done to [the false god]... if any man swear by [him] and keep his oath for the oath's sake, it is by [Aslan] that he has truly sworn, though he know