The Whisperer in Darkness by H.P. Lovecraft

Refusing to let these cloudy qualms overmaster me, I recalled Noyes's instructions and pushed open the six-panelled, brass-latched white door on my left. The room beyond was darkened, as I had known before; and as I entered it I noticed that the queer odour was stronger there. There likewise appeared to be some faint, half-imaginary rhythm or vibration in the air. For a moment the closed blinds allowed me to see very little, but then a kind of apologetic hacking or whispering sound drew my attention to a great easy-chair in the farther, darker corner of the room. Within its shadowy depths I saw the white blur of a man's face and hands; and in a moment I had crossed to greet the figure who had tried to speak. Dim though the light was, I perceived that this was indeed my host. I had studied the kodak picture repeatedly, and there could be no mistake about this firm, weather-beaten face with the cropped, grizzled beard.

But as I looked again my recognition was mixed with sadness and anxiety; for certainly, this face was that of a very sick man. I felt that there must be something more than asthma behind that strained, rigid, immobile expression and unwinking glassy stare; and realised how terribly the strain of his frightful experiences must have told on him. Was it not enough to break any human being-even a younger man than this intrepid delver into the forbidden? The strange and sudden relief, I feared, had come too late to save him from something like a general breakdown. There was a touch of the pitiful in the limp, lifeless way his lean hands rested in his lap. He had on a loose dressing-gown, and was swathed around the head and high around the neck with a vivid yellow scarf or hood.