The Shunned House by H.P. Lovecraft

I had been lying with my face away from my uncle's chair, so that in this sudden flash of awakening I saw only the door to the street, the window, and the wall and floor and ceiling toward the north of the room, all photographed with morbid vividness on my brain in a light brighter than the glow of the fungi or the rays from the street outside. It was not a strong or even a fairly strong light; certainly not nearly strong enough to read an average book by. But it cast a shadow of myself and the cot on the floor, and had a yellowish, penetrating force that hinted at things more potent than luminosity. This I perceived with unhealthy sharpness despite the fact that two of my other senses were violently assailed. For on my ears rang the reverberations of that shocking scream, while my nostrils revolted at the stench which filled the place.

My mind, as alert as my senses, recognized the gravely unusual; and almost automatically I leaped up and turned about to grasp the destructive instruments which we had left trained on the moldy spot before the fireplace. As I turned, I dreaded what I was to see; for the scream had been in my uncle's voice, and I knew not against what menace I should have to defend him and myself.