It was a warm January evening in Williston. The Jenkins family was watching television in their living room. Shelby the family dog, was kicked back, enjoying his regular place at the end of the couch. Shelby was the only member who felt the low, rhythmic rumble, which was the only warning of the impending danger. He wandered from room to room, looking for the cause of the vibration as the rest of the family, engrossed in the T.V., hardly noticed his search.