Dark Intrusions: An Investigation into the Paranormal Nature of Sleep Paralysis Experiences

Since his late teens, Louis Proud has suffered from chronic sleep paralysis and has undergone hundreds of such episodes, many of them terrifying but ultimately transformational and eye-opening. These experiences, he believes, allow access to the "spirit realm" and could well hold the key to a whole host of paranormal phenomena, including poltergeist disturbances, out-of-body-experiences, mediumship, spirit possession, and succubi and incubi encounters.

Drawing on the work of Colin Wilson, J...