Spoiler : "He awoke for a third consecutive occasion at dawn, sweatin' and terrified, with the details of the dream vivid in his mind. His hands were clutching the simple iron frame of the bedstead above his head and the [dews] of his night terror had soaked the linen of the bedding. His name was Farlow. He was a genius in his line, that of higher physics. He was also a friend and acquaintance of mine, and I believe it my duty to tell his story, not that I know what it all means, but I do know that Farlow was not mad. And yet, why should a celebrated scientist be admitted at his own request as a private patient to [Green] Mansion for rest and observation. [Green] Mansion is, not to put too fine a point on it, a luxuriously appointed [mental] home. You see, my friend Farlow experienced a brand of mental torture that is perhaps greater than anything ever recorded. More terrible than anything dreamed up by the horror writers of the last two centuries. He travelled further than any other into the regions that lie... Beyond Midnight."