Whether it's shadowy figures in dark hallways, objects that move on their own or unexplained chills in an abandoned place, ghosts have fascinated people for centuries. A bump in the night, the creak of floorboards and the uneasy coldness of a room has kept investigators and mediums asking one big question. Are ghosts real?Explore the mysteries of ghosts in this graphic guide and decide for yourself - is there anything hiding in the dark?