I thought that I was asleep, and waiting for Jonathan to come back. I was very anxious about him, and I was powerless to act; my feet, and my hands, and my brain were weighted, so that nothing could proceed at the usual pace. And so I slept uneasily and thought. Then it began to dawn upon me that the air was heavy, and dank, and cold. I put back the clothes from my face, and found, to my surprise, that all was dim around. The gaslight which I had left lit for Jonathan, but turned down, came only like a tiny red spark through the fog, which had evidently grown thicker and poured into the room. Then it occurred to me that I had shut the window before I had come to bed. I would have got out to make certain on the point, but some leaden lethargy seemed to chain my limbs and even my will. I lay still and endured; that was all. I closed my eyes, but could still see through my eyelids. (It is wonderful what tricks our dreams play us, and how conveniently we can imagine.) The mist grew thicker and thicker and I could see now how it came in, for I could see it like smoke⁠—or with the white energy of boiling water⁠—pouring in, not through the window, but through the joinings of the door.