Ghosts, wraiths, specters. Poltergeists, phantoms, shades. They manifest in many shapes and dispositions in our lives and the literatures of all cultures. From the Egyptian to the Tibetan Book of the Dead , from the Homeric epics to Shakespeare’s King Hamlet, from the Victorian ghosts of Sheridan Le Fanu, Violet Hunt, and MR James to Amos Tutuola’s My Life in the Bush of Ghosts , from the ethereal creatures of Poe to the startlingly “realistic” ghosts of Henry James and Edith Wh...