In a land of wind and willows, two canoeists encounter some other-worldly wind turbines.

From The Sentinels:

Dunn: He said that he was taking the way of the wind and the sky, and that he was going in—to Them—by which I presume he meant going into the tower and scaling the ladder. And he said other things: That our thoughts made patterns in their world—left 'prints,' as it were—as did theirs in ours; and that that was how they'd found us, by listening to our thoughts, zeroing in on our patterns. And he said that Bobby was merely a bundle of sensory organs wrapped in a skin of decaying matter and so wasn't important, wasn't needed. That only they mattered—they, the beings attached to and inhabiting the turbines. And that ... that ...

Detective Shaw: What, Mrs. Dunn? Say it.

Dunn: But ... don't you see? It doesn't matter what he said, because it wasn't him speaking, not really. Bobby would never have described a human being as just a bundle of sensory organs; he truly believed, with every fiber of his being, that we were more than that—more than just the sum of our parts—it was what inspired him to become a doctor in the first place. And knowing what I knew, knowing what kind of man he was, I pressed him, telling him that Bobby did matter—that he mattered to his patients and that he mattered to me—more than I would ever be able to describe. And then I approached him and embraced him and told him I loved him—feeling, for the briefest of moments, the spirals beginning to close on his back—and he smiled, his eyes returning to normal, after which he said, or started to say, "I love ..." (room tone)

Detective Shaw: (inaudible) He—he told you he loved you?

Dunn: No. He ... his eyes rolled back ... and then his face, it ... it simply imploded. In a spiral. Like someone had flushed a toilet full of blood and brains.