He steps back and sits in front of her, looking dark and purposeful, and as he closes his eyes, we hear a familiar high-pitched whine, although less intense than with Hastings. Windmark tells her about her conversation of that morning, saying it involved the "child Observer" and asking why he's so important to her allies. Nina, attempting to break Windmark's concentration, asks him why a child worries him so much and he replies that his interest comes from mere curiosity, adding that Michael isn't so much a child as a "chromosomal mistake." So there, at least, is confirmation that Michael is in some way physiologically different from the other Observers. Windmark goes on that, "like all anomalies," Michael was scheduled to be destroyed, but he went missing before that happened. "It was a great mystery in my time." He steps up the pressure on Nina's mind and orders her to tell him where Michael is, but he's interrupted by one of the humans telling him there's no sign of anyone else there. Windmark looks at Nina: "Then I will have to resort to a deeper extraction." I hate to make sweeping statements, but I feel fairly comfortable saying there's pretty much no context in which those words can be good. However, he then gets a puzzled look on his face and asks why Nina isn't frightened, and I thought on first viewing this might have meant she poisoned herself, but in response, she tells him that the way the Observers tilt their heads is an involuntary reflex (and plus a million points for one of the henchObservers tilting his head upon hearing that statement). She further explains that the head-tilt changes the angle at which sound waves hit the eardrum, allowing in more stimuli. "Like a lizard." Well, I don't know why you'd want a lizard in your ear... oh, I see, never mind.
She goes on that she's studied lizards too, and while their brains have evolved over 320 million years, they still form no social bonds. "Love does not exist for them. They are incapable of dreaming, of contemplating beauty" -- her voice breaks a little, understandably given what's about to happen -- "of knowing something greater than themselves." Nina concludes that the Observers are like lizards and her experiments showed that for all the Observers' years of evolution, "you inadvertently redeveloped and honed primitive instincts that we moved beyond long ago." She doesn't say "and that's how we'll defeat you in the end," but her final thought -- "In reality, you're the animal" -- amounts to the same thing while being conversationally more a propos. Windmark slowly stands and orders a lackey to restrain her, but while the guy's readying the cuffs, she lifts his gun off him and holds him at bay. She then points it at Windmark, who amusedly tells her she can't hurt him with it. But Windmark has apparently never watched TV before, because Nina smiles just as big and says she knows -- and then points the gun to her temple and pulls the trigger. Of course, they would never show the actual violence of the thing, but that's better anyway, because we get to see an uninterrupted view of the smile fading from Windmark's lizard face.