"You have asked me what the damp thing was that fell on Wells's head. I believe that it was a human brain—the essence of a human brain drawn out through a hole, or holes, in a human head. I believe the brain was drawn out by imperceptible degrees, and reconstructed again by the horror. I believe that for some purpose of its own it used human brains—perhaps to learn from them. Or perhaps it merely played with them. The blackened, riddled body in Mulligan Wood? That was the body of the first victim, some poor fool who got lost between the tall trees. I rather suspect the trees helped. I think the horror endowed them with a strange life. Anyhow, the poor chap lost his brain. The horror took it, and played with it, and then accidentally dropped it. It dropped it on Wells's head. Wells said that the long, thin, and very white arm he saw was looking for something that it had dropped. Of course Wells didn't really see the arm objectively, but the horror that is without form or color had already entered his brain and clothed itself in human thought.