The Chronicles of Narnia (1950–1956) by C. S. Lewis. In the first book in the series, The Lion, the Witch, and the Wardrobe (1950), siblings Lucy, Edmund, Peter, and Susan walk through a wardrobe into the enchanted land of Narnia. There they meet the White Witch, who uses her dark powers to put Narnia in a state of endless winter. The lion, Aslan, is the rightful king. Though Peter betrays Aslan, much like St. Peter betrayed Jesus, Aslan saves him from the White Witch through his sacrificial death. Later, Aslan is resurrected and helps the children conquer the White Witch. Lewis was an atheist for much of his early years, but converted to Christianity in his thirties. Through his writings, he became a prolific and articulate defender of Christianity. The Chronicles of Narnia inspired animated and live-action movies, board games, video games, and action figures.