[He knows it. It's not enough, really, what they're working with. There are still too many people, and the chances of guessing the four out of the bunch with one try is--

It's ridiculous.

But then she carries on with her revelation and he flinches, grimacing. An experiment. Research. Basically nothing, practically labrats (not even deserving of a name...? Where had that thought come from?)]

That's... [Disgusting.] ...That's sick. [But he can't say he's surprised. It had all seemed too sterile, too planned, too laid out. They're just following a path already laid out for them--the two of them are doing it too. He dismisses that for the moment. It's too big for him to figure out right now; he'll need some time to really process what it means to be an experiment.

But.

There's something else he has to address in the meantime.]

Elizabeth--look, you can't die. No matter what, you... you're the only one of us who can figure any of this out, you're-- [so much braver, stronger, better--]

I don't care if you've got a target on your back, don't...don't die.