From 1817 until 1821, a hostile, supernatural entity plagued the Bell family of Tennessee. Beginning with the appearance of a strange, unnatural creature in their corn field, the harassment of the family quickly escalated from simple knocking on the walls and windows of their frontier home to cruel physical attacks focused particularly on youngest daughter Betsy. The Bell home and their invisible tormentor soon became the dark wonder of the territory. Travellers from all points of the compass came to the Bell house to witness firsthand the taunts and violence of the unseen entity, including...