This year’s John Lewis Christmas ad breaks the mould – by actually being about Christmas shopping, without a lovable penguin or snowman in sight. The Narnia-inspired tale is about a woman’s last-minute dash to buy the perfect gift for her sister. There is still magic: like the children in The Lion, the Witch and the Wardrobe, she tips through a rack of dresses into a world of memories that give glimpses of her sister growing up