Gilly Longbottom lives a rather odd life. Her mother is the landlady of the Leaky Cauldron and her father is the cool and collected Herbology teacher at Hogwarts. Her older brother, Oscar, is in training to become an Unspeakable for the Ministry of Magic. And Gilly is in her 6th year at Hogwarts. But when she discovers a strange mirror that leads to a garden in 1898, Gilly makes a mysterious friend. But will she be able to stop him when his intentions become much less than honorable?