Bill’s feet seemed so heavy that he doubted his ability to walk another step. He turned around to look at Bob and could not see him in the semi-darkness. That made him feel better. Bob must be as tired as he was. Sam Crouch was walking along with the same swing that he had used when they first met. The man was not human. It was physically impossible for a man to work as hard as they had for a whole afternoon and part of the evening and then be as fresh and energetic as Crouch was.