In ""Neverwhere,"" Neil Gaiman introduces readers to a dark and magical world hidden beneath London, a place called London Below. When Richard Mayhew, an ordinary man, helps a girl named Door, he is thrust into this strange underworld where reality is distorted, and danger lurks at every corner. The story combines fantasy, mystery, and adventure as Richard seeks to help Door uncover the truth behind the murder of her family. Gaiman’s signature style of blending myth with urban settings creates an immersive, unforgettable world that resonates with fans of speculative fiction.