The author of Poltergeist Over Scotland embarks on an in-depth study of the characteristics that imbue the paranormal world's "noisy ghosts." What Is a Poltergeist? is an introduction to the mysterious phenomenon examining the theories and presenting the latest research evidence for poltergeist activity. In trying to define a poltergeist, author Geoff Holder ponders such questions as: Are they the restless souls of the dead? Demons? Witches' familiars? Household spirits? Mysterious earth energies? Unknown powers of the mind? Or hoaxes? This ebook takes the well-known poltergeist phenomena—the movement of objects by invisible forces, the noises, the eruptions of fire, water and electrical disturbance—and maps them against changing ideas and beliefs. The author presents the latest theories and research evidence in his search for answers. What is a Poltergeist? is part of The Paranormal, a series that resurrects rare titles, classic publications, and out-of-print texts, as well as publishes new supernatural and otherworldly ebooks for the digital age. The series includes a range of paranormal subjects from angels, fairies, and UFOs to near-death experiences, vampires, ghosts, and witchcraft.