Jefferies

 was a ghost whom Rachel Jensen saw in a block of flats in St Anton's Point in 1965. She refused to be evacuated during the Blitz and because of this she caught Roderick Purton attempting to steal her rare clock. She was killed as a result by Purton when he was affected by the magnetic forces concentrated in the area affected his mind. This event was recorded in the rocks and was what Jensen saw in the tower block. (AUDIO: The Concrete Cage)