"I told you," she started, almost impatient, perhaps sensing his disinterest, "I had a friend who-- We found one just like this, but it didn't work, either. She knew everything about it. Since then, I always wanted to give it a try, but..."

But. Ellie leaned forward, sweeping the wall for any kind of extension cord and coming up short.

"Details, details," she sighed at the mention of the power. "We see generators all over the place, right? Or close enough that we could probably drag one over."

Maybe she wouldn't be able to do it on her own, but they'd been through a lot lately. If she was tenacious enough, maybe she'd be able to convince him that it would be worth it to take a mental break.

"Aren't you tired? We've been walking all day." Ellie straightened up again, hands planted on her hips as she tilted her head at the other. "Look, why don't you get some sleep, and I'll check around and see if I can get this thing running."

Then, quickly:

"Promise I'll keep watch. I mean, goes without saying."