A sudden chill came over me. There was a loud shriek from a woman behind. I half turned, keeping my eyes fixed upon the cylinder still, from which other tentacles were now projecting, and began pushing my way back from the edge of the pit. I saw astonishment giving place to horror on the faces of the people about me. I heard inarticulate exclamations on all sides. There was a general movement backwards. I found myself alone, and saw the people on the other side of the pit running off, Stent among them. I looked again at the cylinder, and uncontrollable terror gripped me. I stood petrified and staring. How does the writer use language to describe how the narrator feels?