A Ghost (sometimes known as a Spirit or a Soul) is the spirit of a deceased individual who haunts the area of their death, normally as the result of a violent or untimely death - usually Ghosts are considered frightening but otherwise harmless but there are numerous accounts of more violent encounters with ghosts in folklore, some of the more extreme examples were found in phenomena that has now become known as Poltergeists activity. Although most ghosts take the form of humans there are tales of ghostly animals and even more unusual sightings such as trains, cars or ships.