Gettysburg ghosts: The hallowed fields of Gettysburg, the site of the Civil War battle where tens of thousands lost their lives, have been haunted by the ghosts of those killed before their time. There have been dozens of sightings of apparitions, many on the days the bloody battle was re-enacted. -- Frightened family: A couple moves into a house and begins to hear strange noises from the attic area. They find out a young child had died in the house. -- Moss Beach ghost: Over the years, eyewitnesses recount a series of strange happenings at the Moss Beach Distillery. As many as five different ghosts have lurked in or around the restaurant. -- Lady in Black: Robert Davidson was struck by lightning and left for dead, until a ghostly Lady in Black came out of nowhere, saved his life, and vanished. -- Bullock's deadwood: In 1887, Sheriff Seth Bullock answered the call to clean up the mining town of Deadwood, South Dakota. In 1991, a psychic claims Bullock was communicating with him to change Deadwood gambling laws or a period of lawlessness would ensue. -- Lake Wales haunting: In the fall of 1991 in Lake Wales, Florida, 19-year-old Alen Mann, began claiming he had seen a ghost in his bedroom. The family has deemed the house haunted. -- Mystery hum: All around the world, thousands of people say they are being tormented by the sound of a loud, persistent "hum" no one else can detect. What is the source of the mysterious hum? Despite the best efforts of scientists and researchers, no one knows what is causing the noise, why only a select group can hear it, or what can be done to stop it. -- Always, Karen: Karen Walker died of cancer when she was 21-- her parents go to a minister who communicates with the dead and gives them information about Karen. Eventaully they communicate directly with their daughter and write a book about their experiences.