Chapter 24

What horror had old Mansford seen coming at him out of the darkness, which he had tried to ward off even as he died? And was it the same thing that had come to his elder son, who had sprung forward revolver in hand, and died as he sprang? And again, who had turned on the electric fan? How did that fit in with the deaths of the other two? No one had come in by the door on the preceding night: no one had got in by the window. And then suddenly I paused, struck by a sudden idea. Staveley Grange was an old house--early…