[Had Erwin known about the incision in Levi's gut, he'd have found a better way to carry him. But he doesn't know, and so keeps schlepping him through the corridors and past the labs, moving much faster now, using all those muscles honed on survival in the fields back home to retreat.]

Hopefully all they wanted was some gutter talk, because I know that's all you gave them.

[Erwin had noticed the beeping too, when it had started, but he's still not technologically savvy enough to realize what it could mean. A lot of things beep and make random noises around here, and Erwin wasn't about to get distracted by some dumb machine spouting off. Now, though, he's realizing that it's following them, and that fires off a sense of danger in the back of his mind.]

Levi, do you hear that? Was that there before?