After being rescued by Den, Kath reveals to him that, on Earth, she is a frail novelist called Katherine Wells. Kath is a native of London who, in 1892, was drawn to Neverwhere when she found another doorway after following the will o' the wisp while wandering through some marshes. Like Den she was transformed when she arrived to Neverwhere, in her case into a voluptuous, large breasted nude woman who was immediately captured by the Red Queen (who had created the portal to bring her to Neverwhere). Kath has a much better recollection of her former life than Den, but has no wish to return because she feels she is not only healthier but "more of a woman" in the new land. Like Den, she is completely nude and hairless except for her blond bob hairstyle.