He helps her sit down, then pulls up a seat next to her, still close because he's still afraid of himself here. He exhales slowly and glances down at his wrist; there's no stealthy way to check his heart rate, so he just does, and he can write it off as heart problems. Calming down now, but he'd feel a lot better if he got back down to a resting heart rate.

And he won't stop feeling responsible for this. Out of everyone, he should be able to recognize when it's just a bad idea to carry on with an experiment. He has a front row seat to what the consequences of that are like.

Lydia starts to freak out next to him, and he tries to shake himself out of his thoughts to deal with that. He takes one of her hands, holding it between his own, and he leans forward until she looks him in the eye.

"I don't know. I don't have any of the answers." He squeezes her hand. "We have these, at least," he nods at her wrist. "We're not totally cut off in here, but we're safe. We can call out, check on the others."